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9

This question becomes more complicated if we think in terms of "emotions" (e.g., angry, happy, sad, afraid, etc.) than in terms of "affect" (positive and negative feelings, high and low arousal). I'll start with affect and move on to emotions. An affective state tags an object with a certain value--and it does so very quickly (e.g., Pham, 2007). For ...


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There are (at least) two ways epigenetic traits are inherited. The important background in both cases is gene expression: there is a misconception that genes are for this or that, where the reality is that most traits come from an overlap of several genes expressing themselves in different ratios. As a simple example, consider two varieties of bird of the ...


5

This is in reply to your first question. Taste – in food, music, and sex – is in part a result of imprinting. You find women or men attractive that are like your parents or the community you grew up in because of sexual imprinting (e.g. Aronsson, 2011). Aronsson writes of a sensitive period where this imprinting happens, but I am not so sure that the ...


5

In my mind there are two main explanations of this kind of instinct behaviours. The first one is rooted in evolution. There are many examples of human innate behaviours which we can't explain e.g. when we see a lace or tape on the street we automatically jump and feel scared. Although we live in big city our brain associates the lace with a snake. It is ...


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Actual correlation between physical attractiveness and IQ is somewhere between insignificant and mildly positive, with a slightly higher correlation for men. The correlation between physical attractiveness and perceived intelligence is more significant. There are typically two approaches to explain this (nature vs. nurture): From an evolutionary ...


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It appears that there's been a lot of research done by USC professor Antonio Damasio on the importance of emotions. There's some fascinating case studies and interviews that are worth reading and listening to, but the short summary, as I understand it, is: Emotions are important because they end up directing reason. Without emotion, there are simply too ...


4

Are emotions really necessary for survival? No, not for survival; lots of living things around us without even a brain. Did emotions provide an evolutionary advantage in the past? The areas of the brain we associate with emotion were around far back in our evolutionary past - long before conscious reasoning appeared. Emotions are still an important part ...


2

There are some mentions of Evolutionary Game Theory in this Behavior & Brain Sciences (BBS) article by Andrew Colman (2003). The main article itself only has a brief section on EGT. However, like all BBS articles, there are short commentary articles after the main article. A few of these deal directly with EGT. I was able to find the relevant articles ...


2

The following comes from my research experience using fMRI to study the human visual system. Overall, peoples brains are similar to each other on higher scales, and become very different from each other as the scale becomes smaller. Differences between different people start with brain size and sulci patterns. Also male and female brain anatomies will be ...


2

Short answer Emotions are not necessary for survival, but they may provide evolutionary advantages. Background Although crocodiles cry, they do not feel any remorse in killing their prey when shedding tears doing so (they empty their lachrymals when snapping their jaws shut). Given their relative brain size we can expect (but never know) that they do not ...


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Looking for acknowledgment is so important trait that some authors extracted specific contruct which can be responsible for this tendency - need for social approval. Polish researchers use Social Approval Questionnaire (by Drwal, 1995) next to the other tests, in order to exclude from their data base unreliable responses. It can be interesting for you what ...



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