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A general model of processing stimuli suggests that when information does not provide informational value, then we gradually begin to ignore it. Such a model is consistent with the experience of many people in relation to background traffic noise when moving from a quiet to a noisy neighbourhood. I.e., the frequency with which external traffic noise enters ...


16

Nehligh's 2010 review Nehlig (2010) wrote a systematic review article called "Is caffeine a cognitive enhancer?" (link to publisher, no PDF). On page S89 to S90 Nehlig reviews the evidence of caffeine as a cognitive enhancer within the context of a history of caffeine consumption: In caffeine non-deprived young (20–25 years) and older subjects (50–65 ...


4

The Wikipedia article on Habituation explains it fairly well: The habituation process is a form of adaptive behavior (or neuroplasticity) that is classified as nonassociative learning. Nonassociative learning is a change in a response to a stimulus that does not involve associating the presented stimulus with another stimulus or event such as reward or ...


3

TL;DR summary: gore and your examples thereof belong to even broader classes of stimuli that activate a number of different aversion and defense systems. To some extent, no one really knows why, and some of the most appealing answers may come from somewhat unfalsifiable theories. Building on @caseyr547's answer, disgust occurs somewhat automatically when ...


3

I suppose one explanation of this observation is that being a driver in a car is a semi-private space. It is semi-private in that it often feels like people can't see you. In addition, even if someone sees you, you will be driving away from them shortly. And it is unlikely that they know who you are and that your nose picking will ever affect your ...


3

Why do often repeated behaviors become automatic? => Because that is efficient. Human behavior is often modelled in a dual process theory: if possible, act without thinking only if necessary, carefully consider the situation at hand and think about the best reaction If you do the same thing over and over again, then obviously it is either the best ...


2

Here are some excerpts from Wikipedia you might find helpful for the (somewhat too-) general question: A habit...tends to occur subconsciously.[(Butler & Hope, 1995)]...[Andrews (1903)]...defined [habits as]: "...acquired through previous repetition of a mental experience." Habitual behavior often goes unnoticed in persons exhibiting it, because a ...


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Paul McKenna would be jumping on this question had it been a self-help question :) Some of the causes/factors in habitual eating and strategies to combat habitual eating are described below. Causes and factors of habitual eating Excessive hunger may precipitate an episode of binge eating compared to average hunger levels (Haedt-Matt & Keel, 2011). ...



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