17
votes
0answers
260 views

Development of social cognition as an alternative to the obstetrical dilemma

Human infants are strange in that they are born more helpless than the infants of other great apes. They are born with about 25-30% of their brain developed, compared to the 40-50% of other great ...
13
votes
0answers
123 views

Does self-directed speech help or hurt a blind subject's auditory recognition?

Recently, it was found that self-directed speech was helpful to sighted subjects engaging in a visual search task: Participants searched for common objects, while being sometimes [sic] asked to ...
12
votes
0answers
211 views

Human behaviour in one-shot perfect information games

Background A one-shot game is one where two participants have some set of actions $\{1, ... , n\}$, they make their decision on which option to take (without knowing the decision of their partner, or ...
12
votes
0answers
116 views

What do anatomical substrates of conditioned taste aversion tell us about treatment?

Conditioned taste aversions (CTAs) or Garcia effect are a byproduct of feeling ill after we've consumed a certain food. These aversions is present even if the illness is not related to ingestion and ...
11
votes
0answers
237 views

Does dream recall interfere with “reverse learning”? (Crick and Mitchison's theory of REM sleep)

I've recently became aware of the idea of "reverse learning" that might happen during REM sleep - the brain's attempt to eliminate pathological attractors that might appear in neural networks. The ...
10
votes
0answers
68 views

What are some known roles or correlations of glucocorticoid receptor function to behaviour?

The NR3C1 gene encodes for a neuron-specific glucocorticoid receptor (GR), of which methylation levels have been shown to relate to altered maternal care and stress response in rodents (Weaver et al., ...
10
votes
0answers
699 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 ...
9
votes
0answers
137 views

Do animals that sleep during the day have a different sleep architecture than those who sleep at night?

A typical hypnogram, delineating the sleep architecture for a (human) mammal looks like A distinct distribution of non-REM and REM sleep can be observed. Is this pattern of sleep cycles ...
8
votes
0answers
62 views

Open magnetic resonance imaging datasets on psychosis?

Are there any open magnetic resonance imaging datasets of normal and healthy adults (as controls) and psychotic subjects? Such as ADNI for Alzheimer's or OASIS for aging.
8
votes
0answers
55 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 ...
8
votes
0answers
287 views

Refinements of Rescorla-Wagner model of classical conditioning

The Rescorla-Wagner model is one of the most commonly discussed mathematical models of classical conditioning. It was wildly popular when it came out in 1972, and very successful. The same math, is ...
7
votes
0answers
87 views

What are the psychological differences in camelCase and underscore_case programming conventions?

In computer programming, spaces are often forbidden in the declaration of variable names, so programmers have created alternate methods of identifying word boundaries in variable names: camel case and ...
7
votes
0answers
56 views

Psychology of brand names

Marketers use the fact that different letters are associated with different mental images and emotions when they create brand names. Studies show that letters and their combinations produce ...
7
votes
0answers
190 views

Does data support Domhoff's neurocognitive theory of dreams?

Background: A friend described consistent feelings and themes during a dream. It is my understanding that the contents of our dreams are our subconscious/unconscious/preconscious processing stimuli ...
7
votes
0answers
119 views

What is the optimal exercise regime for improving cognitive functioning?

It seems that researchers agree that exercise increases cognitive abilities. This seems to work universally for all ages: children, adults and old people. It is suggested that everyone should ...
7
votes
0answers
127 views

Does correcting responses after feedback lead to better learning?

In a typical supervised learning experiment, one might present visual stimuli, e.g. faces, one after another and ask participants to classify each one into one of two categories, e.g. A and B. Usually ...
7
votes
0answers
32 views

Does distraction cause us to skip to the next step in a motor plan?

Often, if one is concentrating too hard on a particular task, it seems as though it's quite easy to skip to the next step of a plan of action. For example, a baseball infielder may attempt a throw to ...
7
votes
0answers
67 views

How do our emotions toward a subject affect our brain activity within similar activities?

I'll bring an example: there are people who love to dance and could do it for hours. Yet, if you'd make them run a long distance they would get tired really soon just because they don't like running ...
7
votes
0answers
104 views

How to teach parents to apply early childhood interventions to improve cognitive outcomes in children?

I've watched the "My Brilliant Brain: Born Genius" documentary where they refer to the Abecedarian Project, in that investigation, a group of children that were exposed to early childhood education ...
7
votes
0answers
523 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 ...
7
votes
0answers
215 views

How do cooperative vs. competitive activities impact the learning patterns of an individual?

To what extent does cooperative versus competitive learning influence personality development or even pathological behaviors? If these activities need to be narrowed down to a specific category, I'm ...
7
votes
0answers
56 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 ...
7
votes
0answers
121 views

What processes underly confidence ratings in cognitive decision-making?

Many experiments in cognitive psychology and other domains ask for confidence ratings (e.g., on a 0-100 scale, 100 meaning "I'm sure I experienced this stimulus"). What accounts describe how these ...
6
votes
0answers
264 views

When a group of people laugh, people will instinctively look at the person they feel closest to in that group

Many people online seem to claim that: When a group of people laugh, people will instinctively look at the person they feel closest to in that group. You can find the claim in 31 Psychological ...
6
votes
0answers
57 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 ...
6
votes
0answers
98 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 ...
6
votes
0answers
60 views

Trying to understand equations in Karl Friston article

I am trying to understand a neuroscience article by Karl Friston. In it he gives three equations that are, as I understand him, equivalent or inter-convertible and refer to both physical and Shannon ...
6
votes
0answers
94 views

Why do many people play Candy Crush without ever buying anything while some spend all their money on it?

I'm trying to understand how free-to-play games like Candy Crush Saga use existing knowledge of the human brain to keep people engaged and how they convince players to pay money for in-game goods. ...
6
votes
0answers
237 views

What is the neurological basis of maintaining self discipline?

Self Discipline, as defined in this meagre Wikipedia article as being as the ability to motivate oneself in spite of a negative emotion This is partly distinct from self control and willpower ...
6
votes
0answers
78 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 ...
6
votes
0answers
119 views

Is abstract knowledge incompatible with literal memorization?

Let me describe 2 interesting cases : Solomon Shereshevsky (Luria, 1968 - the Mind of a Mnemonist) had an almost perfect literal memory. He remembers strings of hundreds of digits for years after ...
6
votes
0answers
75 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
46 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 ...
6
votes
0answers
117 views

How can I test whether Dorsal Raphe Nucleus(DRN) activity at night is related to variations in mood?

I'm reading this paper, which discusses Serotonin activity in the Dorsal Ralphe Nucleus(DRN), and even includes some mathematical models of how serotonin is released and reabsorbed. The paper states ...
6
votes
0answers
102 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, ...
6
votes
0answers
134 views

Chunking Patterns and Enjoyment of Applying Patterns

I've been reading a book "The Theory of Fun in Game Design" it talks about two concepts of psychology that I wanted to confirm are true. The writer the book isn't a psychologist. The two concepts ...
6
votes
0answers
167 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 ...
5
votes
0answers
44 views

Do the deaf read faster?

Assuming that a person is born deaf and has never heard spoken language, as they learn to read, do they on average read faster than people with healthy hearing who learn to read the usual way? The ...
5
votes
0answers
42 views

Why do we like stories?

Almost everyone likes a good story, the way in which it is delivered matters, but most people love a good story in one form or another, whether it's delivered through conversation, a book, a video ...
5
votes
0answers
35 views

What exactly is an astroglial calcium wave?

There are quite a few conflicting reports as to what stimulates them, how they propagate, whether they communicate intercellularly, and what they look like. The only consistent information I can ...
5
votes
0answers
43 views

Inhibitory intersensory brain circuitry

In many research articles, a vague description of a inhibitory circuitry in the brain is mentioned. This is presented as an inhibitory mechanism that prevents input from one sensory modality to excite ...
5
votes
0answers
39 views

Are males more likely to view homosexuals as mentally ill than females?

It's generally accepted that males tend to have a more negative attitude toward homosexuality than females: Three studies conducted with students at six different universities revealed a ...
5
votes
0answers
20 views

Simultaneous DTI, structural MRI and 1H-MRS - Are there any examples of this?

I have been reading about recent articles relating to treatment resistant schizophrenia, and apparently there are a lack of studies using multimodal imaging. Initially I just thought that would be ...
5
votes
0answers
42 views

How successful are modern (2015) sentiment analysis algorithms for identifying emotion?

I see a number of questions about implementing text sentiment analysis algorithms on StackOverflow, and am interested - how effective are sentiment analysis algorithms at identifying the ...
5
votes
0answers
16 views

What is “Predictive Reverse Engineering” and how can it be used for understanding brain structure?

Here is a quotation from the paper Markram et al., Introducing the Human Brain Project : New informatics and modeling approaches are making it possible to reverse engineer the detailed structure ...
5
votes
0answers
31 views

Curved/angled geometrical forms and association with femininity/ masculinity

Is there any research or theoretical reasoning on a strong inclination of human mind to associate curved forms with femininity and angled ones with masculinity? (A similar concept of association is ...
5
votes
0answers
24 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. ...
5
votes
0answers
120 views

Is there a relation between speed of executing a task and ones intelligence?

I recently came across a code refactoring problem. Considering the risk of getting into a risky bug later I switched to my usual mode of think and solve it, rather than go and make the changes fast. ...
5
votes
0answers
52 views

What are other methods to induce ego depletion besides using emotional videos and thought suppression?

Muraven and Baumeister (2000) proposed that self-control is a limited resource akin to strength or a muscle, to deplete this limited resource leads to subsequent self-regulatory failure. Ego ...
5
votes
0answers
83 views

What cognitively interesting event-related potentials at FP1, FP2, TP9 or TP10 can be measured with consumer-grade EEG hardware?

I'm looking for cognitively interesting event-related potentials at places like FP1, FP2, TP9 or TP10 that can be measured with consumer-grade EEG hardware. Right now I have an Interaxon Muse EEG and ...

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