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Unanswered Questions

978 questions with no upvoted or accepted answers
14
votes
0answers
755 views

Cultural brain hypothesis and gene-culture co-evolution

Recently, Joseph Henrich of UBC has been promoting his cultural brain hypothesis. The goal is to explain a selection pressure behind the development of the human brain and general intelligence. The ...
14
votes
0answers
2k views

How does goal-tracking and sign-tracking behaviour vary across species?

In Pavlonian (classical) conditioning, conditioned responses of an animal may vary. Some animals focus on the unconditioned stimulus (ie. food/location of food) while others may focus on the ...
13
votes
0answers
434 views

Is abstract knowledge incompatible with literal memorization?

Let me describe 2 interesting cases : Solomon Shereshevsky (Luria, 1968) had an almost perfect literal memory. He remembers strings of hundreds of digits for years after only having read them once. I ...
10
votes
1answer
229 views

Is there any “predictive” component to positive/negative affect in Seasonal Affective Disorder and Bipolar Disorder?

I'm wondering if the human brain "predicts" how certain weeks of the year should feel? For example, a child who is going to school may have a more positive affect in anticipation of summer holidays, ...
9
votes
0answers
129 views

Publicly available social networks in apes and hunter-gatherer societies

Social network analysis is an indiscpensable tool for sociology, and is becoming increasing popular in anthropology, social-psychology and other fields. There are many papers that examine the ...
9
votes
0answers
169 views

What is the neurological mechanism behind the “fear of failure”?

Sometimes, the fear of failing at something can be debilitating, and more often than not present a barrier for that person to even try new things - the locus of the fear can be quite different between ...
8
votes
1answer
373 views

How does the Forgetting curve change after repeated exposure to the same item we would like to memorise?

There has been a long debate going on on the actual form of the Forgetting curve, but my question will be about its change when we review a previously memorised fact - Unfortunately, I couldn't seem ...
8
votes
0answers
67 views

Source for turning cone cell opponent process diagram into equations

There is a diagram on wikipedia that is part of the article on the opponent process. I assume practical equations have been developed, at least reasonable approximations, but they appear to be missing ...
8
votes
1answer
6k views

What is the difference between a need, a drive, and a motive?

Going by Hull's drive-reduction theory, as stated in Psychology, by Ciccarelli, 4th edition: A need is a requirement of some material (such as food or water) that is essential for survival of the ...
7
votes
0answers
72 views

Probiotics and Mental Health

While trying to find research articles within the realm of Psychosynthesis, I have been looking at the "collective unconscious" Image Source: Wikipedia Commons - (CC BY-SA 3.0) Lower Unconscious ...
7
votes
0answers
341 views

Does female attractiveness correlate with age progression?

I'm interested in Evolutionary Psychology and the male perception of female beauty. One of the ideas I'm trying to investigate is the correlation between female fertility and her attractiveness. A ...
7
votes
0answers
362 views

EEGlab: power spectral density from a single EEG lead

I was trying to get power spectral density of a time-series data. The sleep recording software we use, doesn't allow to export EDF format of an interval, only of the whole record, but it allows to ...
7
votes
0answers
230 views

Non-computational models of cognition

There is a question on this site that asks a somewhat related question, whether there are non-physical models for cognition. However, that question still assumes a computational paradigm for the non-...
7
votes
0answers
261 views

Difference between Logan's Instance theory and Exemplar-Based Random Walk (EBRW) theory

I'm trying to find a clear explanation of the difference between Logan's instance theory (Logan, 2002) and the Exemplar-Based Random Walk theory (Nosofsky & Palmari, 1997). Am I mistaken that they ...
7
votes
0answers
440 views

Has there been a neuroscientific explanation of the color phi phenomenon?

The color phi phenomenon is a perceptual illusion in the visual domain which was demonstrated in an experiment by Kolers and von Grunau (1976). The experiment is as follows. A sequence of coloured (...

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