Dam-Siantonio https://www.antoniodamasio.com/ Neurobiology Blog Tue, 22 Apr 2025 08:27:13 +0000 en-US hourly 1 https://wordpress.org/?v=6.2.2 https://www.antoniodamasio.com/wp-content/uploads/2023/08/cropped-neural-network-ged57cef31_640-32x32.png Dam-Siantonio https://www.antoniodamasio.com/ 32 32 How to Memorize Anatomy, Pathology, and Physiology Quickly? Top 10 Tips https://www.antoniodamasio.com/how-to-memorize-anatomy-pathology-and-physiology-quickly-top-10-tips/ Fri, 18 Apr 2025 12:58:31 +0000 https://www.antoniodamasio.com/?p=123 Learning vast quantities of medical information, especially anatomy, pathology and physiology, becomes extremely overwhelming when […]

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Learning vast quantities of medical information, especially anatomy, pathology and physiology, becomes extremely overwhelming when trying to memorize all the body systems and their intricate functions. Medical studies challenge even the brightest minds with multifaceted biomedical vocabulary, complex structural relationships, and countless disease mechanisms.

Fortunately, the right techniques can transform this mountain of information into manageable, memorable knowledge — making learning faster, smoother, and even enjoyable.

The following list includes ten proven methods that maximize your memory performance for anatomy together with pathology and physiology information.

How to Memorize Anatomy: 10 Shortcuts to Success

1. Use Active Recall (Test Yourself!)

Passive reading and highlighting are ineffective for long-term retention. Instead, actively test your memory by:

  • Using flashcards (digital apps like Anki or physical ones).

Anatomy flashcard from Quizlet

  • Covering labels in anatomy diagrams and trying to recall structures.
  • Explaining concepts out loud without looking at notes.

Why it works: Active recall forces your brain to retrieve information, strengthening neural pathways.

2. Spaced Repetition (Study Smarter, Not Harder)

Cramming leads to quick forgetting. Spaced repetition involves reviewing material at increasing intervals:

  • Use apps like Anki or Quizlet to schedule reviews.
  • Revisit difficult topics more frequently.
  • Explore expert-reviewed medical references like the VOKA Wiki.

Example: Study a topic today, then in 2 days, then a week later.

3. Visual Learning with Diagrams, Mnemonics & Interactive 3D Models

Our brains remember images better than text. Boost retention with:

  • Labeled anatomy diagrams (Netter’s Atlas is great).
  • Color-coding (e.g., arteries in red, veins in blue).
  • Mnemonics for lists (e.g., “Some Lovers Try Positions That They Can’t Handle” for carpal bones: Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate).
  • Interactive 3D visualization (VOKA 3D Anatomy provides free access to 200+ medically accurate 3D models for immersive learning).

Head and neck nerves in 3D from VOKA 3D Anatomy & Pathology app

4. Break Down Complex Topics into Smaller Chunks

Instead of overwhelming yourself with entire systems:

  • Divide physiology into smaller processes (e.g., break down renal physiology into filtration, reabsorption, secretion).
  • Study anatomy region by region (e.g., upper limb before lower limb).

5. Teach Someone Else (Feynman Technique)

If you can’t explain it simply, you don’t understand it well enough.

  • Teach a friend, study group, or even an imaginary student.
  • Simplify complex terms into plain language.

Bonus: Teaching reveals gaps in your knowledge.

6. Use Analogies & Real-Life Applications

Relate abstract concepts to everyday experiences:

  • Heart = a pump (physiology).
  • Kidneys = a coffee filter (filtration).
  • Action potential = a domino effect (neurophysiology).

7. Link Pathology to Anatomy & Physiology

Instead of memorizing diseases in isolation:

  • Connect pathology to anatomical structures and physiological disruptions.
  • Example: Myocardial infarction (pathology) → Blocked coronary artery (anatomy) → Ischemia & hypoxia (physiology).

8. Listen to Audio Resources

Turn downtime into study time:

  • Medical podcasts (“The Curbsiders Internal Medicine Podcast”).
  • Record yourself summarizing topics and replay them.

9. Draw & Label Repeatedly

Drawing improves visual and motor memory:

  • Sketch anatomy from memory, then check accuracy.
  • Redraw pathways (e.g., Krebs cycle, coagulation cascade).

10. Stay Consistent & Use Interleaving

  • Short, daily study sessions beat last-minute cramming.
  • Interleaving: Mix topics (e.g., study cardiac anatomy + related pathologies in the same session).

To sum up

Medical students should avoid facing pain during memorization of anatomy or pathology or physiology. Using active recall with spaced repetition and mnemonics alongside teaching will enable faster learning as well as improved retention. Test the aforementioned learning techniques until you discover the best strategy while keeping in mind that steady practice leads to success.

Do not underestimate the importance of sleep exercise and nutrition since they make your brain perform at its peak when your body remains healthy.

Bonus Tip: Don’t neglect sleep, exercise, and nutrition — your brain performs best when your body is healthy!

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The Neuroscience of Comfort: How Medical Clothing Affects the Brain and Productivity https://www.antoniodamasio.com/the-neuroscience-of-comfort-how-medical-clothing-affects-the-brain-and-productivity/ Thu, 19 Dec 2024 14:42:43 +0000 https://www.antoniodamasio.com/?p=113 The work of a medical professional requires high concentration, physical endurance, and emotional stability. Every […]

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The work of a medical professional requires high concentration, physical endurance, and emotional stability. Every day, doctors, nurses, and other healthcare workers face enormous workloads that can cause stress and fatigue. In such conditions, even small details, such as the comfort of medical clothing, play an important role. Modern research in the field of neuroscience confirms that comfortable clothing affects not only physical condition, but also cognitive functions and emotional balance.

1. Comfort and stress reduction

Stress is a constant companion of a medical worker, especially in emergency situations. Neurobiological studies show that physical discomfort caused by uncomfortable clothing increases the level of cortisol, the stress hormone. Muscle tension, skin irritation, and overheating contribute to fatigue and make it difficult to perform tasks that require maximum concentration.

Properly selected medical suits that take into account anatomical features and provide freedom of movement help reduce physiological stress. Fabrics that breathe and maintain optimal thermoregulation allow the body to be less distracted by discomfort, which is directly related to improved cognitive function and increased productivity.

2. Thermoregulation and cognitive abilities

The human brain is sensitive to temperature changes in the body. When overheated or overcooled, the body spends additional resources to maintain balance, which reduces the brain’s ability to effectively process information. Modern medical scrubs made of technological fabrics help maintain optimal body temperature, which helps maintain focus and prevent cognitive exhaustion.

Thanks to the thermoregulatory properties of fabrics, medical professionals can work long shifts while maintaining high productivity and attention to detail.

3. Ergonomics and freedom of movement

Women’s medical clothing, created taking into account anatomical features, reduces muscle tension and prevents fatigue. Neurobiological studies confirm that muscle tension, especially in the back and shoulders, is associated with the activation of the amygdala, the area of ​​the brain responsible for the perception of stress.

Ergonomic suits that do not restrict movement allow specialists to perform complex manipulations with minimal physical effort. This improves coordination and reduces the risk of errors in work.

4. Color psychology and emotional balance

The color of medical clothing affects both the workers themselves and the patients. Neuroscience confirms that colors can affect a person’s emotional state by activating different areas of the brain. Pastel and neutral tones, often used in women’s medical suits, reduce anxiety and create a feeling of calm and confidence.

This is especially important for medical personnel, since calmness and emotional stability are critical factors in decision-making and maintaining high performance.

5. Psychological perception and confidence

The feeling of comfort and the aesthetic appeal of a medical suit directly affect self-perception. Research in the field of cognitive psychology shows that satisfaction with appearance improves confidence and mood. This, in turn, activates the dopamine systems of the brain, which are responsible for motivation and productivity.

Women’s medical suits, designed with a balance between functionality and aesthetics, help specialists feel confident and professional throughout the working day.

Conclusion:

The neurobiology of comfort confirms that medical clothing is not just a form, but an important tool for maintaining cognitive efficiency and emotional well-being. Ergonomic, thermoregulatory and aesthetically pleasing scrubs reduce stress, maintain concentration and promote the productivity of medical professionals. Innovative approaches to the design of women’s medical suits create conditions in which work becomes not only effective, but also more comfortable at the neurobiological level.

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Brain Mosaic: Using MacBooks to Analyze Neurobiological Data https://www.antoniodamasio.com/brain-mosaic-using-macbooks-to-analyze-neurobiological-data/ Mon, 11 Dec 2023 13:24:44 +0000 https://www.antoniodamasio.com/?p=96 In the modern era of scientific research, neuroscience faces enormous challenges in understanding the complex […]

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In the modern era of scientific research, neuroscience faces enormous challenges in understanding the complex mechanisms of the brain. With the advent of high-tech tools and data analysis techniques, researchers are eager to implement new technologies to gain a deeper understanding of the functions of neural networks. In this article, we’ll look at how the use of MacBooks plays a key role in the analysis of neuroscience data, creating a sort of “mosaic” approach to understanding the brain.

MacBooks in Neuroscience

MacBooks provided by Apple have become an integral part of the daily work of many neuroscience researchers. These powerful computers provide high performance and can efficiently process and analyze huge volumes of data obtained from neuroscience experiments.

Neuroscience Software

One of the key components of successful research in neuroscience is specialized software. MacBooks support a variety of tools for neural network modeling, image processing and time series analysis, which greatly simplifies the research process.

Neural Network Modeling

Using programming languages such as Python and deep learning libraries, researchers can create and analyze complex neural network models. MacBooks provide a convenient development environment and high performance, allowing you to quickly experiment and respond to changes in data.

Data Analysis and Visualization

MacBooks also stand out for their data analytics and visualization capabilities. Modern tools such as Jupyter Notebooks allow researchers to conduct analyzes interactively, making the process more dynamic and efficient. Visualizing data on a MacBook becomes a creative process, creating a mosaic view of the structure and function of the brain.

Teamwork and Collaboration

Modern scientific research often requires collaboration and sharing of data between researchers. MacBooks provide convenient collaboration tools, allowing teams of scientists to effectively collaborate on projects and share results.

MacBooks in Neuroscience: Modern Tools

MacBooks provide neuroscience researchers not only with high performance, but also with advanced tools for data analysis. Standard software platforms such as Python, R, and others are finding their way into scientists’ toolboxes, opening the door to creating and optimizing analysis algorithms.

Modeling Neural Networks: Virtual Experiments

Using MacBooks, researchers can conduct virtual experiments, simulating neural networks and analyzing their behavior. Integration with popular deep learning libraries such as TensorFlow and PyTorch makes building and testing complex models accessible and efficient.

Analysis and Visualization: Extracting Meaning from Data

MacBooks provide a wide range of data analysis and visualization tools, allowing researchers to extract meaning from complex sets of information. Interactive tools and development environments such as Jupyter Notebooks are becoming powerful tools for visualizing and communicating results.

Working Together: Developing Collective Knowledge

MacBooks are actively introduced into the process of collective work on scientific projects. Efficient data sharing and exchange of ideas are made possible by the devices’ high compatibility and ease of use.

To perform important tasks in the field of neuroscience, where high-tech data analysis methods are widely used, the health of the MacBook can be critical for several reasons:

  • Performance: MacBooks offer powerful performance, which is key when processing and analyzing the massive volumes of data found in neuroscience research. Computer malfunctions or malfunctions can significantly slow down the data analysis process and even lead to loss of results.
  • Compatibility: It is important that the software and hardware used are compatible with the tools and platforms used in neuroscience. Program development and neural network modeling often require a specific environment, and working on a working MacBook provides the necessary technological capabilities.
  • Data Security: Neuroscience research processes sensitive data and its security is of utmost importance. A healthy computer with updated security and software helps protect valuable scientific results from threats such as viruses or unauthorized access.
  • Comfort and Efficiency: Using a working MacBook provides a comfortable and efficient work environment for the researcher. Regular crashes, program crashes or other problems can create inconvenience and distract from the main task – conducting and analyzing neurobiological experiments.
  • Visualization and Communication: Well-functioning computers provide high-quality data visualization, which is especially important when presenting results and communicating with colleagues. The lack of equipment hassles also makes it easier to create presentations and publish research results.

Overall, a well-maintained MacBook is a reliable tool for successfully completing mission-critical tasks in neuroscience, where accuracy, performance, and data security are critical.

Conclusion

In the use of MacBooks in neuroscience research at Good Zone in Brooklyn, we see not just a technological tool, but rather a key to unraveling the mosaic structure of the brain. This integrated approach not only advances the understanding of brain science, but also creates innovative methods for analyzing data in this exciting area of scientific research. That is why, with such a reliable repair company, you don’t have to worry about your discoveries.

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How are our beliefs formed and why does our brain deceive us? https://www.antoniodamasio.com/how-are-our-beliefs-formed-and-why-does-our-brain-deceive-us/ Sat, 17 Jun 2023 15:01:00 +0000 https://www.antoniodamasio.com/?p=56 Once I left the house in a red jacket and got caught in the rain. The next time I dressed the same way and went outside.

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Once I left the house in a red jacket and got caught in the rain. The next time I dressed the same way and went outside. So every time I wear a red jacket, it rains? Of course not. But our thinking is set up in a way that can play tricks on us – now every time I wear a red jacket, I take an umbrella with me. This makes absolutely no sense at all, so why do I continue to associate outerwear of a certain color with rain? The answer to this question, oddly enough, dates back to 1975, when researchers at Stanford University conducted a series of fascinating experiments in an attempt to understand how our beliefs are formed. Inviting a group of students, the scientists handed them pairs of suicide notes, one written by a random person, the other by a person who later committed suicide, and then asked them to distinguish between the genuine notes and the fake ones. The scientific results were surprising and have since been confirmed by numerous other studies.

How are beliefs formed?

According to The New York Times, citing the study, some students, while studying suicide notes, discovered that they had a talent for determining who really committed suicide. Out of twenty-five pairs of notes, this group of students correctly identified the real one twenty-four times. The others realized they were hopeless – they identified the real note only ten times.

As is often the case with psychological research, the whole set-up was a sham. While half of the notes were indeed genuine-they came from the Los Angeles County coroner’s office-the assessments were fictitious. Students who were told they were almost always right were, on average, no more astute than those who were told they were mostly wrong.

In the second phase of the study, the deception was exposed. The students were told that the real purpose of the experiment was to gauge their reactions to being told they thought they were right or wrong. (This, as it turned out, was also a hoax.) Finally, the students were asked to estimate how many suicide notes they actually categorized correctly and how many they thought the average student had identified.

At this point, something curious happened: the students in the high-scoring group said that they thought they had actually done quite well – significantly better than the average student – even though, as they had just been told, they had no reason to think so. Conversely – those students in the low-scoring group reported that they had, in their own opinion, done significantly worse than the average student – a conclusion that was equally unwarranted. So what’s the point?

A few years later, a new set of Stanford students were recruited for a similar study. This time they were handed packets of information about a pair of firefighters, Frank K. and George H. Frank had a young daughter and loved to scuba dive. George had a young son and played golf. The packets also included the men’s responses to what the researchers called a “risky-conservative choice test.” In one packet of information, Frank was a successful firefighter who almost always chose the safest option. In another version, Frank also chose the safest option, but was a lousy firefighter who received several warnings from his superiors.

In the middle of the study, the students were told that they had been deliberately misled and that the information they had received was completely fictitious. They were then asked to describe their own beliefs: how do they think a firefighter should view risk? Students who received the first packet thought that a firefighter would try to avoid risk, while students in the second group believed that a firefighter would take risks.

It turns out that even after “the evidence for their beliefs has been completely refuted, people are unable to make appropriate changes to those beliefs,” the researchers wrote. In this case, the failure was “particularly impressive” because two data points would never be enough to generalize the information.

Ultimately, the Stanford study became famous. The claim made by a group of scientists in the seventies that humans could not think straight sounded shocking. Today it is not – thousands of subsequent experiments have confirmed the discovery of American scientists. Today, any graduate student with a tablet can demonstrate that seemingly reasonable people are often completely irrational. Rarely has this insight seemed more relevant than it does today, has it not?

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How do brain cells make a map of memories? https://www.antoniodamasio.com/how-do-brain-cells-make-a-map-of-memories/ Wed, 26 Apr 2023 14:41:00 +0000 https://www.antoniodamasio.com/?p=49 Human memory is selective and there are many reasons for this. Neuroscientists have recently discovered a curious aspect of how our memory works.

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Human memory is selective and there are many reasons for this. Neuroscientists have recently discovered a curious aspect of how our memory works. When the brain needs to recall information related to a specific location, individual neurons take aim at specific memories.

When asked to recommend a travel itinerary for a city you’ve been to often, selective snippets of memories of places from different trips may come to mind. Researchers from several universities, including Columbia University in New York and Emory University in Atlanta, USA, studied individual neurons – called “memory cells” – of 19 patients who had undergone brain surgery for epilepsy treatment.

The patients performed a task designed to assess spatial memory performance. During the task, the subjects were placed on a road using virtual reality (VR) goggles and asked to press a button when they encountered specific objects. In part of the task, the researchers asked participants to walk along a path and mark the location of a distant object. By examining the medial temporal lobe (MTL) and, in particular, the entorhinal cortex, the scientists found that memory-tracking cells were “spatially tuned” to the location and could then retrieve the location information that the person had to recall.

The scientists’ work shows that neurons in the human brain keep track of events we intentionally recall and can change their activity patterns to distinguish between memories. They’re like dots on a Google map that mark where important events in your life happened. This discovery could serve as a potential mechanism for our ability to selectively utilize different experiences from the past and help experts understand how these memories affect the spatial map of the human brain.

In the past, scientists have already tried to understand how this can be done. They found that the cells of the neural network are very important for the operation of spatial memory, as it works similarly to a GPS system. Spatial tuning of neurons is the idea that individual neurons are “activated to represent a location in the environment during navigation.” Previous work has suggested that spatially tuned cells reassign their triggering circuits in different environments, so events that occur in different locations are associated with different spatial maps,” the researchers explain.

Building on this work, the scientists suggested that individual neurons in the MTL, and especially in the entorhinal cortex, will demonstrate a kind of “spatial tuning of neurons” modeled by past experience. The implication is that the human brain creates the truest map of memories.

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Artificial intelligence has been taught to read human thoughts https://www.antoniodamasio.com/artificial-intelligence-has-been-taught-to-read-human-thoughts/ Sun, 26 Mar 2023 14:44:00 +0000 https://www.antoniodamasio.com/?p=52 Reading a person's thoughts no longer seems as fantastic as it did 10-20 years ago. For example, there have long been bionic prostheses that are controlled by the power of thought, and even brain-computer interfaces.

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Reading a person’s thoughts no longer seems as fantastic as it did 10-20 years ago. For example, there have long been bionic prostheses that are controlled by the power of thought, and even brain-computer interfaces. Based on them, several years ago brain implants-decoders were created that allow paralyzed people to mentally compose words or even whole sentences. However, these devices have a number of disadvantages, so they have not become widespread. Now, American scientists have proposed another way of “brain scanning” that does not require an implant to be implanted in the brain. Instead, artificial intelligence recognizes thoughts based on brain activity.

Why brain-computer interfaces are flawed

A year ago, Dutch scientists developed a brain-computer interface (BCI) that can translate a patient’s brain activity into words. The researchers detailed it in the journal Nature Communications. Even earlier, a similar brain-computer interface was created by Chinese developers.

These devices effectively recognize words, but work on the basis of electrodes that are implanted in the human brain. In addition, the interfaces focus on the part of the brain that is responsible for the mouth movements made by a person to pronounce a word. That is, in order for the device to recognize a thought, the person has to try to pronounce it with their mouth.

Why brain-computer interfaces are flawed. A brain-computer interface designed to voice thoughts has a number of flaws that make it difficult to use. Photo.
Brain-computer interface, designed to voice thoughts, has a number of shortcomings, which complicates its use

Other ways of reading thoughts, for example, based on electroencephalogram (measuring brain activity with the help of electrodes fixed on the head), were less effective. They only allowed to decipher individual words, but are not able to construct a coherent text.

How the mind-reading device works

Employees of the University of Texas at Austin have developed an interface based on functional magnetic resonance imaging (fMRI). It allows you to monitor the activity of certain areas of the brain during its functioning, and has a high resolution. Sometimes this technology is used to monitor blood flow in the brain. Earlier we told you that with the help of fMRI, during one of the studies scientists tracked the level of stress in people.

In this case, fMRI monitors the part of the brain that is responsible for a person’s imagined speech. The human brain responds to each word in a specific way. So the scientists’ task was to link each word to a specific pattern of brain activity. To do this, the team scanned the brains of three people for 16 hours while they listened to podcasts.

In this way, the team was able to create a specific set of maps of brain activity triggered by different words, phrases or phrase meanings. The authors then trained the artificial intelligence to determine what a person was thinking based on fMRI data. Unlike developments that existed before, this technology does not recognize individual words, but determines the overall meaning of each phrase or sentence.

To construct text based on the fMRI data and processed by the AI, the researchers connected the language model of the GPT-1 neural network, which was the predecessor of ChatGPT. Gradually, they were able to train the AI to recognize words, phrases and sentences. As reported by the authors of the work in the journal Nature Neuroscience, even if the AI developed by them is wrong in some words, it well conveys the essence of the speech that a person hears or mentally pronounce.

In addition, the system has even learned to voice what a person sees in front of him. For example, in one of the experiments, participants watched a video without sound, in which a dragon knocks a man down. In doing so, the system, based on brain activity, voiced the scene as: “He’s knocking me down.” However, participants were not asked to mentally voice what they saw. The short video below shows how accurately the system recognizes thoughts.

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The speed of cognitive processes appeared to be unchanged up to the age of 60 years https://www.antoniodamasio.com/the-speed-of-cognitive-processes/ Sat, 22 Oct 2022 13:58:00 +0000 https://www.antoniodamasio.com/?p=45 German scientists have challenged the view that the speed of mental processes in the brain slows down after the age of 20.

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German scientists have challenged the view that the speed of mental processes in the brain slows down after the age of 20. Instead, they have shown that it remains at the same level until the age of 60. However, it is true that the speed of making certain decisions, as such, decreases with age, but this is not due to the slowing down of the “gray matter”.

It is widely known that the speed of cognitive processes in our brain begins to slow down in our youth, passing its peak around the age of 20. Indeed, many people can recall that in their 20s, various tasks seemed to be thought about faster than in more mature years. Various scientific studies also attest to this.

Scientists from the University of Heidelberg (Germany) do not deny this, but after conducting their own study, they found a new cause of cognitive slowing, not related to the speed of the brain. They presented their findings in the journal Nature Human Behavior. The study involved more than 1.2 million people.

The experiment was conducted online. In the task of volunteers was to classify certain words and images that appeared on the screen, by pressing the “right” keys on the keyboard. And what did the researchers see? That this response time was indeed slower in subjects over the age of 20 compared to younger participants.

However, according to experts, this was hardly due to the slowing down of their cognitive processes. By using mathematical models (Bayesian hierarchical modeling), the scientists concluded that such a phenomenon lies beyond the speed of the brain and can be associated with other factors. First of all, with the fact that with age people who have gained certain life experience become more cautious and in principle slower to make certain decisions.

And also with age a person’s physical reflexes slow down, so he or she may react slower to something (for example, pressing buttons on a keyboard) for purely physiological reasons. But after the age of 60, cognitive processes in the brain really start to slow down. Although in different people it happens in different ways: someone has a degree of “mental” speed is still very high, someone – quite low.

The reasons for this are still unknown to scientists – they hope to get an answer to this question in future studies. In addition, the work of experts has shown that the speed of the brain is at about the same level in very different groups of people. It depends little on gender, race or level of education. Scientists, however, emphasize that for the final conclusions need, as usual, additional research and study of the speed of response during the execution of other tasks by the subjects

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Classical music and white noise did not improve cognitive performance https://www.antoniodamasio.com/classical-music-and-white-noise-did-not-improve-cognitive-performance/ Mon, 06 Jun 2022 13:54:00 +0000 https://www.antoniodamasio.com/?p=42 Australian scientists have learned that listening to classical music and white noise does not improve abilities related to the processing of contradictory information.

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Australian scientists have learned that listening to classical music and white noise does not improve abilities related to the processing of contradictory information. And white noise even worsens them.

Earlier studies have shown that classical music can have a positive effect on people’s ability to process conflicting information. Neuroscientists believe that listening to it is useful in alleviating various neuropsychological disorders. Despite this, the issue remains poorly understood. Scientists from Monash University (Australia) conducted their own study on this issue, the results of which were published in the journal Frontiers in Neuroscience.

The work involved 67 students who were asked to take two different tests – color and verbal. This was done under different conditions – with classical music playing in the background, with white noise and in silence. The interval between the tests was several days.

Live music helped analgesics in spinal rehabilitation
Researchers from Israel and the USA have shown that music therapy can eliminate postoperative pain in patients with spinal disorders more effectively than medications.

After the tests, scientists analyzed the results of cognitive skills during the tests. It turned out that neither music nor white noise increased the level of cognitive abilities of the participants, and the latter, like other stressors, even worsened it. At least, this applied to the processing of contradictory stimuli. The analysis of the literature showed that classical music can influence the improvement of some cognitive abilities not related to the processing of contradictory information, but definitely not white noise

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REM sleep phase is needed to regulate brain temperature https://www.antoniodamasio.com/rem-sleep-phase-is-needed-to-regulate-brain-temperature/ Mon, 18 Apr 2022 13:41:00 +0000 https://www.antoniodamasio.com/?p=36 A researcher from the USA analyzed the duration of sleep of warm-blooded animals, data on their body temperature, brain, lifestyle and so on. He came to the conclusion that the REM phase of sleep is necessary for animal and human brain thermoregulation and awakening.

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A researcher from the USA analyzed the duration of sleep of warm-blooded animals, data on their body temperature, brain, lifestyle and so on. He came to the conclusion that the REM phase of sleep is necessary for animal and human brain thermoregulation and awakening.

Sleep is an integral part of every person’s life and essential to their health. Doctors believe that it is optimal for an adult to sleep seven hours a day, and that lack and excess of sleep are harmful.

However, many people (10-30% of the population) regularly face sleep disorders, including insomnia. Of equal importance is the quality of sleep, including the duration of its individual phases (slow sleep, REM sleep and so on) and their ratio.

Interestingly, the average duration of spontaneous daily sleep in mammals varies widely, from two to 20 hours per night. Assessing this parameter helps to better understand the physiological and other functions of sleep. It turns out that sleep duration does not correlate with brain size and cognitive abilities. Rather, it is determined by their ecology, lifestyle and how a particular animal eats.

Thus, the cyclical alternation of sleep and wakefulness was found to be important precisely in the context of nutrition and optimal energy utilization.

It is noteworthy that the temperature of the animal’s brain drops sharply during the transition from wakefulness to the phase of slow-wave sleep – that is, as the animal falls asleep. At the same time, the brain warms up again with the onset of the rapid eye movement phase of sleep (REM phase).

The REM (rapid eye movement) phase of sleep is indeed accompanied by rapid eyeball movements. In this phase, the brain is most active – and it is in this phase that humans dream.

As a result, it was concluded that the duration of the rapid sleep phase in warm-blooded animals is inversely proportional to the temperature of their body and brain. Thus, having a body temperature of only 31 degrees, monotremes (like platypus and echidna) spend about 7.5 hours in the REM-phase every day. They are followed at intermediate rates by marsupials and placental mammals (most members of this class, including humans). Finally, the shortest phase of REM sleep (only 0.7 hours per day) is noted in birds, which have the most “hot” blood – about 41 degrees.

It turns out that the phase of REM sleep plays a key role in the regulation of brain temperature and the rate of metabolism in this organ. It also helps the brain to move into a state of wakefulness.

The author of the study believes that during the slow phase of sleep brain temperature of animals should not fall below a certain critical value. Otherwise, they simply will not be able to wake up quickly in case of danger.

According to the scientist, his conclusions are quite applicable to human sleep. He emphasizes that the duration of the phase of REM sleep in Homo sapiens has average values, the same can be said about the temperature of his brain. All this rather denies the role of the REM phase of sleep in the outstanding cognitive and emotional capabilities of our species.

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A person’s age has been predicted by the connections between certain brain networks https://www.antoniodamasio.com/persons-age-has-been-predicted/ Fri, 15 Oct 2021 13:38:00 +0000 https://www.antoniodamasio.com/?p=33 A team of scientists led by members of Drexel and Villanova Universities in Philadelphia (Pennsylvania, USA) has investigated how human age correlates with functional

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A team of scientists led by members of Drexel and Villanova Universities in Philadelphia (Pennsylvania, USA) has investigated how human age correlates with functional connectivity between large-scale brain networks. In the future, the findings of the work, published in the journal Psychology and Aging, will help develop effective treatments for neurodegenerative diseases.

That cognitive functioning – the ability to perform various mental activities closely related to learning and problem solving – changes with age is no secret. Neuroscientists also know that these differences between young and old people are due to changes in the brain’s connectivity – in how its regions interact with each other.

While the authors of previous studies mainly focused on how differences in neural networks affect how well people of different ages cope with cognitive tasks, the new work puts the problem, in the words of the scientists themselves, “upside down”. “We wondered: can we engage patterns of brain connectivity when people are not performing any tasks to predict their age?” – Chrysikou added.

The sample consisted of 547 people 18-88 years old for whom neuroimaging results from the Cambridge Center for Aging and Neuroscience (Cam-CAN) were available. Using their data, the researchers first analyzed whether connectivity between the central executive network and the brain’s passive mode network (unlike the former, it is active when a person is doing nothing, inactive, resting and immersed) could be a marker of age. To this end, they used multiple regression analysis (allows you to establish the dependence of one variable on two or more independent variables)

In addition, the scientists tested how the strength of the connection between the two networks is affected by the relevance detection network: it is activated when there is a discrepancy between what a person knows and can predict, and what he sees, hears or feels. It is this network that is responsible for conscious attention – when it is activated, the brain comes out of passive mode (and vice versa).

As the results have shown, by the functional connection between large-scale brain networks, which changes in the process of growing up and aging, it is indeed possible to guess the age of a person with high accuracy. And when the significance detection network was taken into account, it was even better to determine the number of years from birth.

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