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Neuroscientist Klaus Linkenkaer-Hansen on the biological reasons for immersion in one's own thoughts, the skill of managing attention and the role of AI in studying the brain
A wandering mind is a situation where a person begins to pay attention to the content of his mind, to information that he creates, as opposed to information coming from the senses. For example, when you are driving a car or riding the subway, you are often preoccupied with your own thoughts and miss important information from the outside, despite the fact that you are watching and listening. So, for example, you miss your stop.
A shift in attention can be triggered by something in the external environment, but it can also occur spontaneously, without any sensory trigger. Neurophysiologists are interested in understanding why mind wandering sometimes lasts from 5 to 10 seconds, and in other cases several minutes.
What determines the duration of these states? Psychologically speaking, boredom is the most common cause of a wandering mind. For example, if you are chatting with someone who talks incessantly, you might get bored. It will become difficult to focus on the other person's monologue, and you will begin to entertain yourself with your own thoughts.
The problem of the wandering mind is acute for workers who are engaged in simple but dangerous work. This can lead to accidents. Not to mention the educational process, when the student cannot concentrate on the teacher or the book being read.
Research History: From James to Killingsworth
In the 1890s, psychology pioneer William James focused on the study of the wandering mind and the stream of consciousness. He said: "While part of what we perceive comes to us through the senses from external objects, another part (and perhaps more) always comes from our own head."
It is only recently that this claim has been backed up by a large amount of quantitative evidence in a landmark scientific paper by Matthew A. Killingsworth, published in 2011. This article was a game changer and sparked new research in the field of the wandering mind ...
Killingsworth attracted 5,000 participants who downloaded the app to their smartphones so that he could study the change and content of their wandering mind in natural settings. This approach was different from previous attempts in which participants had to fill out questionnaires within 24 hours. When the application was turned on at different times of the day, the participant had to answer three questions: "How do you feel right now?", "What are you doing now?" and "Are you thinking about something else that is not related to what you were doing?" In a quarter of a million responses, there was an astounding 47% mind-wandering rate. This was a kind of proof of what James said.
Biological Causes of the Wandering Mind
A relevant and intriguing question is: can certain systems in the brain cause the mind to wander? The system that is most often involved in this process is the network of the passive mode of the brain. It was discovered by Marcus Rachel and colleagues almost 20 years ago during a meta-analysis using positron emission tomography, which measures metabolic activity.
Researchers have found a decrease in activity in certain regions of the brain whenever people are asked to perform a task that requires activity. This discovery surprised everyone, because earlier scientists assumed that cognitive tasks should increase brain activity. It turned out that there are main regions of the brain located in the anterior-central and posterior-central parts of the brain with high basic activity during rest and a decrease in this activity during, for example, solving an arithmetic problem.
Positron emission tomography diagram
We still know little about the functional role of the passive mode network. It is usually studied using resting state neuroimaging, when people are asked to sit motionless with their eyes closed, without falling asleep, for 5-10 minutes. Unfortunately, it is only recently that we have validated instruments that are useful for measuring the content and quality of thoughts and feelings during rest, and they have not yet been implemented as a standard procedure for obtaining such data in neuroimaging of resting states.
The Amsterdam Resting-State questionnaire was specially developed for this purpose and has been validated in resting studies of over a thousand healthy patients. Studies using this questionnaire have shown that there is large and consistent individual variation in the thoughts and feelings of healthy people, but mental illnesses such as depression and anxiety have a profound effect on thoughts and feelings during rest. We still have a lot of work ahead of us before we understand the neural correlates of the wandering mind phenomenon at rest.
Large and stable variation in the content of the wandering mind indicates genetic influence, and this is an interesting and yet unexplored topic. Although Killingsworth discovered that, on average, a person's mind wanders about 47% of the day awake, this result is likely to vary between 35% and 65% from person to person. This is due to the fact that everyone needs internal processing and ordering of information, but an extrovert can spend less time on this than an introvert.
How to gain control of a wandering mind
In the West today, we see an increasing interest in mindfulness, or mindfulness meditation, used to learn to focus and reduce stress. During these exercises, people try to focus on one object (for example, the movement of the chest or the feeling of air passing through the nostrils during breathing) for 10 to 20 minutes. However, this is boring, and an unprepared person will constantly be carried away after his wandering mind. When a person finds himself distracted, his attention should be returned to the starting point.
Attention management skill is not a matter of a few minutes, but a systematic daily practice for weeks and years. Only in this case is there an opportunity to learn this. This behavior change has been associated with improved mental health in cases of depression, anxiety, and PTSD. Modern efforts are aimed at understanding the neural mechanisms underlying these effects, as well as finding out their influence on the content, quality and frequency of episodes of the wandering mind.
The Role of Artificial Intelligence in Brain Research
Neuroscience is currently experiencing an explosion in data acquisition and rapid advances in digital signal processing used to make sense of data. Resting neuroimaging is just one example, while we measure hundreds and thousands of time intervals, each of which originates from a small piece of brain tissue and shows extremely complex vibrations. The signal processing engineer's job is to quantify these fluctuations and relate them to neural mechanisms, cognitive performance, and behavior.
In parallel with these developments, the field of computational neuroscience is growing. In other words, neural systems are simulated on a computer, which allows experiments with more precise control in the study of the role of a particular mechanism in the dynamics of the brain. The challenge is to find the right level of measurement and description of the functions of the human brain - from the molecular to the behavioral level - and to link experimental data with computational models so that we can ultimately understand how this complex and important phenomenon of the wandering mind works. In fact, the amount of knowledge required can greatly exceed the capabilities of an individual. Thus, with the advent of more advanced artificial intelligence capable of working with unstructured data, we cannot rule out
Every year there are new records showing what kind of things a machine can do better than humans. For example, 25 years ago she beat the chess champion. However, chess is a fairly structured game. Then she beat the best Jeopardy players! (game show. - Ed.), and in 2016 she won the champion of go. The IBM Watson system offered the best cancer diagnostics that doctors could provide. With artificial intelligence rapidly improving the ability of computing systems to make sense of received data, it is difficult to say why these developments will not surpass the human ability to absorb large amounts of information and make better decisions about how to understand the brain and treat its disorders.
Source:
A wandering mind is a situation where a person begins to pay attention to the content of his mind, to information that he creates, as opposed to information coming from the senses. For example, when you are driving a car or riding the subway, you are often preoccupied with your own thoughts and miss important information from the outside, despite the fact that you are watching and listening. So, for example, you miss your stop.
A shift in attention can be triggered by something in the external environment, but it can also occur spontaneously, without any sensory trigger. Neurophysiologists are interested in understanding why mind wandering sometimes lasts from 5 to 10 seconds, and in other cases several minutes.
What determines the duration of these states? Psychologically speaking, boredom is the most common cause of a wandering mind. For example, if you are chatting with someone who talks incessantly, you might get bored. It will become difficult to focus on the other person's monologue, and you will begin to entertain yourself with your own thoughts.
The problem of the wandering mind is acute for workers who are engaged in simple but dangerous work. This can lead to accidents. Not to mention the educational process, when the student cannot concentrate on the teacher or the book being read.
Research History: From James to Killingsworth
In the 1890s, psychology pioneer William James focused on the study of the wandering mind and the stream of consciousness. He said: "While part of what we perceive comes to us through the senses from external objects, another part (and perhaps more) always comes from our own head."
It is only recently that this claim has been backed up by a large amount of quantitative evidence in a landmark scientific paper by Matthew A. Killingsworth, published in 2011. This article was a game changer and sparked new research in the field of the wandering mind ...
Killingsworth attracted 5,000 participants who downloaded the app to their smartphones so that he could study the change and content of their wandering mind in natural settings. This approach was different from previous attempts in which participants had to fill out questionnaires within 24 hours. When the application was turned on at different times of the day, the participant had to answer three questions: "How do you feel right now?", "What are you doing now?" and "Are you thinking about something else that is not related to what you were doing?" In a quarter of a million responses, there was an astounding 47% mind-wandering rate. This was a kind of proof of what James said.
Biological Causes of the Wandering Mind
A relevant and intriguing question is: can certain systems in the brain cause the mind to wander? The system that is most often involved in this process is the network of the passive mode of the brain. It was discovered by Marcus Rachel and colleagues almost 20 years ago during a meta-analysis using positron emission tomography, which measures metabolic activity.
Researchers have found a decrease in activity in certain regions of the brain whenever people are asked to perform a task that requires activity. This discovery surprised everyone, because earlier scientists assumed that cognitive tasks should increase brain activity. It turned out that there are main regions of the brain located in the anterior-central and posterior-central parts of the brain with high basic activity during rest and a decrease in this activity during, for example, solving an arithmetic problem.

Positron emission tomography diagram
We still know little about the functional role of the passive mode network. It is usually studied using resting state neuroimaging, when people are asked to sit motionless with their eyes closed, without falling asleep, for 5-10 minutes. Unfortunately, it is only recently that we have validated instruments that are useful for measuring the content and quality of thoughts and feelings during rest, and they have not yet been implemented as a standard procedure for obtaining such data in neuroimaging of resting states.
The Amsterdam Resting-State questionnaire was specially developed for this purpose and has been validated in resting studies of over a thousand healthy patients. Studies using this questionnaire have shown that there is large and consistent individual variation in the thoughts and feelings of healthy people, but mental illnesses such as depression and anxiety have a profound effect on thoughts and feelings during rest. We still have a lot of work ahead of us before we understand the neural correlates of the wandering mind phenomenon at rest.
Large and stable variation in the content of the wandering mind indicates genetic influence, and this is an interesting and yet unexplored topic. Although Killingsworth discovered that, on average, a person's mind wanders about 47% of the day awake, this result is likely to vary between 35% and 65% from person to person. This is due to the fact that everyone needs internal processing and ordering of information, but an extrovert can spend less time on this than an introvert.
How to gain control of a wandering mind
In the West today, we see an increasing interest in mindfulness, or mindfulness meditation, used to learn to focus and reduce stress. During these exercises, people try to focus on one object (for example, the movement of the chest or the feeling of air passing through the nostrils during breathing) for 10 to 20 minutes. However, this is boring, and an unprepared person will constantly be carried away after his wandering mind. When a person finds himself distracted, his attention should be returned to the starting point.
Attention management skill is not a matter of a few minutes, but a systematic daily practice for weeks and years. Only in this case is there an opportunity to learn this. This behavior change has been associated with improved mental health in cases of depression, anxiety, and PTSD. Modern efforts are aimed at understanding the neural mechanisms underlying these effects, as well as finding out their influence on the content, quality and frequency of episodes of the wandering mind.
The Role of Artificial Intelligence in Brain Research
Neuroscience is currently experiencing an explosion in data acquisition and rapid advances in digital signal processing used to make sense of data. Resting neuroimaging is just one example, while we measure hundreds and thousands of time intervals, each of which originates from a small piece of brain tissue and shows extremely complex vibrations. The signal processing engineer's job is to quantify these fluctuations and relate them to neural mechanisms, cognitive performance, and behavior.
In parallel with these developments, the field of computational neuroscience is growing. In other words, neural systems are simulated on a computer, which allows experiments with more precise control in the study of the role of a particular mechanism in the dynamics of the brain. The challenge is to find the right level of measurement and description of the functions of the human brain - from the molecular to the behavioral level - and to link experimental data with computational models so that we can ultimately understand how this complex and important phenomenon of the wandering mind works. In fact, the amount of knowledge required can greatly exceed the capabilities of an individual. Thus, with the advent of more advanced artificial intelligence capable of working with unstructured data, we cannot rule out
Every year there are new records showing what kind of things a machine can do better than humans. For example, 25 years ago she beat the chess champion. However, chess is a fairly structured game. Then she beat the best Jeopardy players! (game show. - Ed.), and in 2016 she won the champion of go. The IBM Watson system offered the best cancer diagnostics that doctors could provide. With artificial intelligence rapidly improving the ability of computing systems to make sense of received data, it is difficult to say why these developments will not surpass the human ability to absorb large amounts of information and make better decisions about how to understand the brain and treat its disorders.
Source: