Physiology Of Human Behaviour Book
Verona Garrott
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As humanity prepares for deep space exploration, understanding the impact of spaceflight on bodily physiology is critical. While the effects of non-terrestrial gravity on the body are well established, little is known about its impact on human behaviour and cognition. Astronauts often describe dramatic alterations in sensorimotor functioning, including orientation, postural control, and balance. Changes in cognitive functioning as well as in socio-affective processing have also been observed. Strikingly, no comprehensive theoretical model exists to outline the impact of non-terrestrial gravity on behaviour. Here, we have reviewed the key literature across the last 10 years and explored the impact of non-terrestrial gravity across three key functional domains: sensorimotor functioning, cognition, and socio-affective processing. We have proposed and preliminary validated a neurocognitive model to account for the effects of non-terrestrial gravity in these domains. Understanding the impact of non-terrestrial gravity on human behaviour has never been timelier and it will help mitigate against risks in both commercial and non-commercial spaceflight.
Inter-individual variability in perception, thought and action is frequently treated as a source of 'noise' in scientific investigations of the neural mechanisms that underlie these processes, and discarded by averaging data from a group of participants. However, recent MRI studies in the human brain show that inter-individual variability in a wide range of basic and higher cognitive functions - including perception, motor control, memory, aspects of consciousness and the ability to introspect - can be predicted from the local structure of grey and white matter as assessed by voxel-based morphometry or diffusion tensor imaging. We propose that inter-individual differences can be used as a source of information to link human behaviour and cognition to brain anatomy.
The study of the onset and ontogeny of human behaviour has made it clear that a multitude of fetal movement patterns are spontaneously generated, and that there is a close association between activity and the development of peripheral and central structures. The embryo starts moving by 7.5 week's gestation; 2 to 3 weeks later, a number of movement patterns including general movements, isolated limb and head movements, hiccup, and breathing movements, appear. Some movements (e.g. yawning, smiling, 'pointing'; we show these in eight videos in this review) precede life-long patterns; others have intrauterine functions, such as sucking/swallowing for amniotic fluid regulation, breathing movements for lung development, or eye movements for retinal cell diversity. In cases of developmental brain dysfunction, fetal general movements alter their sequence and gestalt, which suggests a dysfunction of the developing nervous system. The scarcity of longitudinal studies calls for further comprehensive research on the predictive value of prenatal functional deviations. What this paper adds Motor output can occur in the absence of sensory input. Structural development is activity-dependent. Fetal general movements are among the first movement patterns to occur. Pregnancy-related and maternal factors impact quantity and modulation of fetal general movements. Prenatal general movement assessment has not yet brought the expected breakthrough.
In this blog post, we describe several behavioral theories, as well as different ways to measure human behavior. Lastly, we discuss research fields in which human behavior analysis plays a central role, like psychology, health care, education, and consumer research.
Influenced by prominent thinkers like John B. Watson and B.F. Skinner, behavioral psychology gained popularity between 1920 and 1950. With its focus on observable behavior instead of mental states, behaviorism provided a systematic way to study human behavior.
Behaviorists argue that behavior is learned in interaction with our environment, and that all behaviors are learned through experience. Behavior analysis is the scientific approach to understanding behavior and how it is influenced by environmental factors. It is based on the principles of behaviorism, which emphasizes the role of the environment in shaping behavior.
Behavior analysts focus on identifying the antecedents (what happens before behavior occurs) and consequences (what happens after behavior occurs) that influence behavior, and then use this information to develop interventions that can change behavior.
In his experiments with dogs, Pavlov paired the sound of a bell (new stimulus) with the presentation of food (naturally occurring stimulus). Eventually, the dogs started salivating when hearing the bell, even when no food was presented (new association). And voil, new behavior is learned.
The second learning principle, operant conditioning, describes the way our behavior is shaped by consequences. Specifically, it states that reward and punishment can influence the likelihood that behaviors occur again.
These methods explain much of how human behavior is shaped. However, critics argue that behaviorism fails to take into account important factors like free will, internal influences, and other types of learning. In the next paragraphs, we will explore two other behavioral theories.
This observational learning does not only occur when observing another person, but also when listening to descriptions of behavior or viewing symbolic models. From very early on, this provides us with many learning opportunities.
Another difference with behaviorism is that observational learning does not necessarily lead to permanent behavioral changes. In other words, people might learn new information without actually showing new behaviors.
Specifically, RFT researchers argue that language enables us to learn new information indirectly. The key learning processes of this theory are centered on relations between stimuli, or relational frames.
As an example, imagine you meet three new people: Aaron, Bianca and Chris. Aaron introduces himself to you, and explains that Bianca is his sister and Chris is his father. Importantly, with these relations learned directly (B-A, C-A), you now know several other relations indirectly.
As you might know from personal experience, changing behavior can be difficult. Maybe you have tried to exercise more or to eat more healthy foods, only to find yourself back to your old habits one week later.
First, it is important to know that about 95% of our behavior is driven by unconscious processes. It would simply take too much mental energy to be aware of all our behaviors. So instead, most of it becomes automatic, part of our habits.
To return to our previous example, imagine that you want to exercise more often. What are the consequences of that behavior? More energy, better health, slimmer body. Sounds good, right? But to get there, you have to work out, sweat, and skip comfortable hours on the couch.
Do you notice the difference between these consequences, specifically in their timing? The unpleasant consequences come immediately, while you have to persevere for weeks or even months until you can experience the pleasant consequences of your behavior.
By making a new behavior part of an automatic routine, you are more likely to stick with it. The beauty of it is that you can keep stacking on new behaviors, once a new behavior has become a habit of itself.
You can also harness the power of consequences, by creating ways to make the short-term consequences of your desired behavior more positive, while making the short-term consequences of procrastination more costly.
For example, you can reward yourself each time you eat a healthy meal. Simply praising yourself for each step in the right direction can make a difference, as can actively imagining the long-term benefits of your behavior. And if you want to make the consequences of procrastination more costly, you can try teaming up with a buddy, making your intentions public, or putting an expensive bet on your behavior.
Principles like these are also used in (cognitive) behavioral therapy. With the help of a therapist, behaviors involved in anxiety, depression, addictions or other mental disorders are examined and changed gradually. To provide people with the best care possible, accurate measurements and continued research of behavior are essential.
To measure human behavior, all kinds of research instruments are at our disposal. These instruments can be divided into qualitative measurements and quantitative measurements. What is the difference between qualitative and quantitave research? Let us explore this further.
A very important part of studying human behavior is performing observations. What better way to explain someone's behavior than by observing that person? How is your test participant interacting with a child, a patient, or computer?
Video observations are also a great way to study human behavior. The use of video greatly expands the scope of any research project. Annotating from video allows you to make frame-accurate descriptions of behavior. Viso is an ideal solution for high quality recording of video and audio in multiple rooms, and provides the video material needed to gain insights into processes, human performance, and communication.
Another way of observing one's behavior is by looking at the inside, more specifically: by looking at their brain. As we are not conscious of most of the processes that happen on the inside, looking into brain activities can give new insights into the behavior of people.
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