All Questions

14
votes
0answers
756 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 ...
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
170 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
0answers
231 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-...
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 ...
7
votes
0answers
75 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
345 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
367 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
262 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
441 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 (...
7
votes
0answers
329 views

If stimulus triggers dopamine release, can dopamine release trigger memory recall of stimulus?

Modern science of sleep is starting to lean towards a viewpoint that dopamine has an important function in dreaming, and that dopaminergic pathways - mesolimbic and mesocortical are activated during ...
7
votes
0answers
353 views

Does limiting mental activity during the day increase mental performance later in the day?

Is there any scientific evidence to support the idea that you only have so much cognitive energy in a given day; and if so, would the mental abilities of someone who focuses on as little as possible ...
7
votes
0answers
111 views

Which study design to use: nested case-control or case-cohort?

I am following a cohort of patients over time from which I am planning to sub-sample a sub-group of patients to pilot a new intervention. The plan is to compare the effectiveness of the new ...
7
votes
0answers
144 views

Are there any cutting edge techniques that would enable one to acquire a foreign language at a relatively fast pace?

I am aware of immersion methods as well as mnemonics such as the one Daniel Tammet mentioned in Born on a Blue Day. I read that Kim Peek's lack of corpus callosum enabled his brain to absorb ...
7
votes
0answers
99 views

What is the correlation between self and other ratings of goal orientation?

In educational psychology goal orientation is a popular construct. In particular popular dimensions of goal orientation include performance-approach, performance-avoidance, and mastery. The studies ...
6
votes
0answers
45 views

The brain physically changes with regular coffee consumption, but at what rate does it return to normal?

Question We know adenosine receptors A1 & A2 subtypes physically increase in the basal ganglia with prolonged caffeine exposure over the period of about 1-2 weeks, but at what rate do they return ...
6
votes
0answers
170 views

Testosterone in women vs. estrogen in men?

It is known that women with higher estrogen are more likely to find men with higher testosterone as more attractive. Positive feedback is also known. But are women with higher testosterone level are ...
6
votes
0answers
230 views

Does Golden Hammer really exist?

Note: I am not talking about Law of the instrument. I am referring to the following (anti-)pattern of behavior: A person very competent in one area (say, Philosophy) peremptorily expressing his ...
6
votes
0answers
3k views

Why does learning new mental skills lead to headaches?

Why is deliberate practice uncomfortable? For example, during learning college math and playing the piano. Why do we get headaches after long hours of practice? According to this question, learning ...
6
votes
0answers
52 views

Is it easier/faster to recognise digits or written words?

Is there any peer-reviewed evidence which suggests whether it is faster and/or easier for a native English speaker to recognise digits (1, 2, 3, 4) vs. full written English word equivalents (one, two, ...
6
votes
0answers
88 views

Would courts sentence differently if we used a different numeral system?

I hear a lot in the media about people sentenced to go to jail for a number of years divisible by 10. Does our numeral system affect it? Would courts sentence the same if we counted - for example - ...
6
votes
0answers
60 views

Are results of various cognitive tests meaningless if the subject has achieved them through training?

What I mean by meaningless is whether or not they lose their predictive power outside of the specific test employed to evaluate some facet of cognition. I don't study the cognitive sciences, but ...
6
votes
0answers
99 views

Is there a hierarchy of gestalt visual stimuli processing?

Let's say that we have a set of shapes. They can be grouped according to the different Gestalt laws of grouping. However, different Gestalt principles will divide the set into different groups, e.g. ...
6
votes
0answers
679 views

Have there been any recent replications of the Hofling hospital experiment?

In the original Hofling hospital experiment (1966): A person would telephone a nurse, saying that he was a doctor and giving a fictitious name, asking the nurse to administer 20 mg of a ...
6
votes
0answers
242 views

Confirmation vs peak-end bias - when does it make sense to “save the best for last”?

This question is inspired by Should I give the interviewers surprise? on Academia.SE. The strategy of "save the best for last" seems to be affected in conflicting ways by two cognitive biases: ...
6
votes
0answers
72 views

Is it sufficient to say self control eliciting the reduced ERN (error-related negativity) in cognitive control tasks?

The limited resource model of self control suggests that the exertion of self control can impair performance in subsequent cognitive control tasks (for details on the model, check this question. Most ...
6
votes
0answers
191 views

Do Kahneman–Tversky results hold for longer periods and aggregate behavior?

Kahneman and Tversky (1979) show findings that can be summarized in this plot: They show that humans dislike losses "more" than they like comparable nominal gains. The results come from a series of ...
6
votes
0answers
866 views

What to do when you have a speed-accuracy trade-off in your data?

Many studies report that a speed-accuracy trade-off (SATO) did not occur in the data since there is a positive correlation between RTs and error rates. In other words, people took longer to respond ...
6
votes
0answers
78 views

Grating orientation & frequency which induces highest gamma

I am doing some research on perception and gamma activity in V1 area. To check some of my results I need to find an experimental result, from which I would know which orientations and frequencies of ...
6
votes
0answers
50 views

What kind of feed-back scheme is there for a back-propagation feed-forward ANN for self-learning of touching a coordinate with robot arm?

I'm a beginner in this topic and are learning how to build an artificial neural network and different types of training associated with them. Right now, I'm trying to figure out self learning. For ...
6
votes
0answers
1k views

Differences between the way men and women interpret body language

There are many socially accepted ideas about the differences between men and women, I am wondering how much of this is misconception or based in reality. I was reading this question: How important is ...
6
votes
0answers
90 views

Current directions in emulation theory

Over the decades there have been several theories from various aspects of cognitive science that have appealed to a link between perception and action as a way of understanding information processing ...
6
votes
0answers
130 views

Resource on how to effectively develop within-subjects vignette based study

Background: Where I used to work fellow researchers used to have a task known as the CV task. The task required participants to answer a number of questions about a set of CVs (e.g., is this a good ...
6
votes
0answers
75 views

What is the relationship between practice and performance of telephone call centre workers?

I am interested in modelling the relationship between practice and performance both in laboratory tasks and field settings. I was interested in what existing research has examined how the performance ...
6
votes
0answers
244 views

Online datasets for the disjunction effect and violations of the sure-thing principle

The disjunction effect (or violation of the sure-thing principle) is as follows: A dis­junc­tion effect occurs when peo­ple pre­fer x over y when they know that event A obtains, and they also pre­...
5
votes
0answers
47 views

Why do teenage girls “fall in love” with idols?

Why do teenage girls "fall in love" with idols they never met? This behaviour is much more uncommon (if it happens at all) among teenage boys (At least in my experience. I also did a quick survey ...
5
votes
0answers
70 views

How do serotonin antagonist and reuptake inhibitors work as an antidepressant?

The monoamine hypothesis postulates that the deficit of certain neurotransmitters is responsible for depression, and even that certain neurotransmitters are linked to specific symptoms. If suppose ...
5
votes
0answers
25 views

Do neurons involved in reflex movements process information or they just transmit a signal?

According to Reflex A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which ...
5
votes
0answers
56 views

Can extrinsic rewards successfully sustain habits in the long-term?

With 2019 right around the corner, I've been reading about forming successful habits. Many non-academic sources (and Charles Duhigg's popular book The Power of Habit) have advocated for pairing a cue ...
5
votes
0answers
53 views

Talking about emotional experience

In a book 59 seconds (section "Creating the perfect diary"), Richard Wiseman cited Zech & Rimé (2005) - I had impression that he suggests that according to that study talking about traumatic ...
5
votes
0answers
57 views

Can you self-induce a derealization episode?

From The experimental induction of depersonalization (DP) and derealization (DR) in panic disorder and nonanxious subjects (Miller, et al., 1994) DP and DR induction procedures were the following: ...
5
votes
0answers
381 views

Are scintillating scotomas really caused by cortical spreading depression? If so, how is this known to be true?

I have just read about a visual effect called a scintillating scotoma. Many variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the ...
5
votes
0answers
47 views

Is the perception of drawings an acquired skill?

Most descriptions of visual perception explain how our brains interpret incoming visual stimuli (via feature detection, monocular depth cues, etc.). They then assume that the same process works for ...
5
votes
0answers
119 views

Will studying formal logic improves logical reasoning?

Reason for asking question: I am looking to see if there is any good empirical evidence or study that shows or suggests that studying former logic or maybe informal logic would actually improve ...
5
votes
0answers
61 views

Definition of cognitive load

Wikipedia's page on cognitive load starts with In cognitive psychology, cognitive load refers to the effort being used in the working memory. Cognitive load theory differentiates cognitive load ...
5
votes
0answers
93 views

Is feeling bad about being cheated on innate or learned behaviour?

For most people, if their partner cheated on them with another person they would feel devastated. But is there any evidence that this is biologically innate behaviour or if it is a socially learned ...
5
votes
0answers
27 views

Other studies of animals with sign language

Dr. Francine Patterson taught a modified form of sign language to Koko, a western lowland gorilla. Much media attention has been focused on Koko, especially after her death, and Patterson herself ...
5
votes
0answers
32 views

Is there a relation between the ability to recognize faces and the number of people one meets daily?

Does the average number of different people one sees daily affect one's ability to recognize faces? Compare a person who lives in a crowded city (and thus sees many different faces daily) with a ...

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