For questions regarding the study of the underlying neural substrates of cognition, especially those at the crossroads of psychology and neurobiology

learn more… | top users | synonyms

3
votes
0answers
34 views

What are the neural substrates of retrieval induced forgetting?

Retrieval-induced effects It is well known that practicing retrieval of remembered items increases the probability of correctly recalling that item in future tests: the testing effect. ...
0
votes
0answers
30 views

How many dimensions do “thoughts” have [closed]

Some people are able to recollect distant memories, sounds, smells or even feeling. But our technology could only transform this abstract cognitive process into one dimension signal such as the EEG or ...
0
votes
0answers
27 views

How to Achieve State of Extreme Focus?

Well, how can human mind be in a state where all thoughts are focused on one thing and there are no distractions. when you can feel out of your consciousness and nothing can stop you. please tell if ...
1
vote
1answer
89 views

Where do you get your news? [closed]

I'm a software developer. Many of us get our news from http://news.ycombinator.com Where do cogsci people get their news from? I'd like to read the latest trends and discoveries in cogsci research. ...
1
vote
0answers
29 views

What makes disengaged participants tired / exhausted after corporate meetings?

Why do disengaged people feel tired, fatigued or unfocused after long, "boring" corporate style meetings? (there is an agenda, but not everyone participates?) Over the years I've observed dozens of ...
2
votes
0answers
14 views

What's the difference between simultanagnosia and neurological extinction?

Both of these terms describe the inability to perceive more than one object at a time. I'm not too sure what the big difference is between them. Note that I'm referring to 'extinction' as used in ...
-1
votes
0answers
20 views

What is the mechanism behind “sleepwalking through life”?

I have strong interest in dreaming and sleep, and sleep related topics interest me. Over the years I've heard the phrase "sleep walking through life" on numerous occasions, and an internet search ...
3
votes
1answer
36 views

How does Parkinson's disease result in tremors?

From what I understand, Parkinson's disease is caused by the death of dopamine producing cells in the substantia nigra, however I don't understand how that causses the symptoms of Parkinson's. I am ...
-1
votes
2answers
53 views

Why people “awaken” to spirituality around age 30? [closed]

I've read about a number of cases where people "change" and become spiritual around age 30. If I remember correctly, most well known religions figures, like Jesus or Buddha start teaching around that ...
3
votes
0answers
13 views

How is brain processing different for situation-less emotional faces vs. situated emotional faces?

In traditional emotional face perception paradigms, participants are shown circle cut-outs of emotional faces. All context has been removed. Participants only see the face. However, it's well ...
4
votes
1answer
65 views

Difference in frequencies of mistakes between use of left-right vs. up-down

I have no hard data, but from my personal experience in people specifying right or left directions (similarly east or west) and up or down (north or south, top or bottom), people frequently make ...
-1
votes
0answers
18 views

Most biologically plausible model of categorization

Categorization in cognitive psychology has had a lot of research and theories thrown at it. However, what is the most biologically plausible cognitive model of categorization? By biologically ...
7
votes
2answers
78 views

What's the difference between repetition suppression and habituation?

Neural repetition suppression seems to be describing behavioral habituation on a neuronal level. What's the difference between these two terms?
1
vote
0answers
8 views

What are there neuroanatomical mappings of the Wisconsin Card Sorting Task?

I know that the Wisconsin Card Sorting Task is used to diagnose various mental disfunctions such as schizophrenia and drug addiction. However, has it been specified what brain regions or structures ...
7
votes
2answers
70 views

How does this illusion - that I just inadvertently created - work?

As I was working on a basic chess application for Android, I loaded some chess clip art into my imageviews. Then this happened. Look closely at the top two rows. At first I was startled. My ...
3
votes
2answers
48 views

Are there mental reflexes?

Similar to knee-jerk or withdrawal, are there any innate reflexes in cognition? Are they based on personality, or are there any that are universal?
6
votes
2answers
87 views

Is there a difference between hearing and decoding the sound?

I presume that deafness is the inability of hearing any sounds. And I presume that it's also possible to be less able to decode (and translate to a meaningful message) what others speak [happens a lot ...
3
votes
1answer
82 views

Dichotic listening tasks and crosstalk

In a dichotic listening task where participants listen to different (frequency-wise) musical tones through headphones, is cross talk to the contralateral cochlea of each ear through bone conduction a ...
3
votes
0answers
21 views

How does conscious rational internal thought gets initiated - what gives rise to it on any given day?

I'm reading a book called "The power of now" by Ekhart Tolle, and in that book he suggests that internal dialogue/monologue/planning/judging can be first observed, then disidentified with and ...
4
votes
2answers
79 views

Why is it so difficult to use a “true mirror” as a mirror

This Youtube video shows what a "true mirror" is: https://www.youtube.com/watch?v=ZSxCZCy5Wsk In short, when you look into a true mirror you look at yourself (among other things) as you really are, ...
3
votes
0answers
20 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 ...
4
votes
1answer
22 views

Biologically plausible cognitive model of Wisconsin card sorting task

As discussed previously, there are a wide range of models that have been applied to the Wisconsin card sorting task. However, which one is most biologically plausible? That is, uses a realistic model ...
3
votes
0answers
19 views

What neurophysiological mechanisms are typically associated with distraction?

I've been looking into focus aids and I've come across some music which markets itself as entertaining your "limbic system". Although it's been asked before how music can affect mental states, I'm ...
1
vote
0answers
37 views

Research on computational models of physiological mechanisms in affective neuroscience at a biochemical level

As computational neuroscience has the mainstream on single neuron/network modelling for biochemical aspect, and computational modelling of physiological mechanism of hippocampus for analytic study of ...
5
votes
2answers
63 views

Do the colour blind have a distinct visual cortex structure?

Studying the structure of the visual cortex, it seems there are many neural structures specifically dedicated to detecting and interpreting colour. For example, parvocellular cells are particularly ...
4
votes
2answers
55 views

Can hallucinogens treat depressive states?

Given the serotonin hypothesis of depression, increasing synaptic serotonin level may cause anti-depressive effects. Hallucinogens seems to have such advantages: They improve mood at once, but ...
5
votes
0answers
40 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 ...
2
votes
1answer
67 views

Effective sampling rate in human visual system

The [stroboscopic effect][1] is often explained as one of the problems of sampling. If sample rate is too low, you might have the impression of the signal frequency being low or even reverse. There ...
5
votes
0answers
79 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 ...
3
votes
1answer
81 views

Is meaning-seeking behavior a biological optimization problem?

In short, I'm interested in cognitive, neuroscientific, biological and/or computational perspectives on what we vaguely refer to as meaning seeking. Of course, this is a large topic, but any ...
8
votes
2answers
82 views

how is tone volume encoded?

I'm wondering whether increasing the volume would result in (a) a neuron that was already firing to now increase its spike rate, (b) a different group of neurons to add their activity to the ...
1
vote
0answers
34 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
2answers
92 views

How does masking work?

Masking occurs when the delay between the target and the mask is less than a threshhold (say 50 milliseconds). If sensory data passes from lower to higher visual cortices/processing regions as in a ...
1
vote
0answers
9 views

Brain areas active while learning hierarchical structure of a problem

There are multiple examples in the machine learning literature of trying to learn the hierarchical structure of a reinforcement learning problem, however have there been any papers tying this learning ...
6
votes
2answers
135 views

What is the neurobiological basis of the “inner voice” used for thought or reading?

I've recently experienced a number of hypnogogic near sleep states characterized by change in thinking (stage 1-2 sleep). I noticed that if I let go and get absorbed in the state, I can follow it. I ...
1
vote
0answers
34 views

Is there a part of the human brain responsible for triggering imagination, fantasy and coming up with unusual stories?

I'm trying to understand if there's a specific process or part of the human brain which, when activated causes the person to daydream, engage in fantasy or come up with ideas that are far from common ...
2
votes
1answer
44 views

A subtle test for color-blindness

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested? E.g. showing the person cards with colored dots like depicted here is ...
1
vote
0answers
20 views

What is the neurobiological difference between Jungian Judging and Perceiving individual?

Jungian or Myers Briggs type indicator reserves the last letter of a 4 letter archetype to stand for Judging or Perceiving. Part of being a Judging type is punctuality - being on time, keeping ...
3
votes
1answer
93 views

Does the brain need more sleep after heavy load?

Does the brain require more sleep in the following night, if you have used a lot more of its capacity that day than usually?
2
votes
4answers
111 views

Different neural structures for quick vs. methodical decision making

In the book "Thinking, Fast and Slow", the author claims that there are two systems of thinking. System 1 is quick, instinctive and emotionally driven while System 2 is more logical and deliberate. ...
0
votes
1answer
221 views

What is the difference between Behaviorism and Cognitivism?

Behaviorism vs. Cognitivism. I've been currently reading about the subject and I have trouble finding a definite difference between the two.
3
votes
2answers
122 views

Is there scientific evidence on the benefits of binaural beats?

When two coherent sounds with nearly similar frequencies are presented to each ear respectively with stereo headphones, the brain integrates the two signals and produces a sensation of a third sound ...
1
vote
1answer
39 views

Pupillometry: how long needs the pupil to respond towards an cognitive stimuli?

I would like to know if somebody could give me some literatur advice about the latency response of the pupil after a cognitive stimuli. I know that the light reflex response is quiet fast compared to ...
0
votes
0answers
30 views

What are the underlying mechanisms for optimal bias

I have asked a question before about how does smoker's decision react to new personal health information. Link here. How do people estimate smoking's impact on their mortality? Now I have a ...
1
vote
0answers
23 views

Research into relation between constructed language choices and measurable cognitive skills

From my own anecdotal evidence: Two individuals with similar linguistic background, age, education, overall IQ, etc. prefer markedly different programming language styles: one individual prefers ...
3
votes
0answers
28 views

Is the mind's adaptation to increased traveling speeds, physical or psychological?

When a motor vehicle increases in speed, we soon adjust to the faster pace of movement; seemingly by processing incoming information faster. Is this purely psychological, with the brain "dropping" ...
3
votes
1answer
97 views

Universal Mind? Nature or Nurture?

I have been reading a book entitled "The Geography of Thought" by Richard Nisbett. He talks about how easterners and westerners think differently. I am not all the way through it, but I agree with a ...
5
votes
2answers
100 views

Can our auditory perception be used to trick our visual perception?

"Our consciousness lags 80 milliseconds behind actual events...The 80-millisecond rule plays all sorts of perceptual tricks on us. As long as a hand-clapper is less than 30 meters away, you hear and ...
3
votes
1answer
35 views

Are there any fMRI decoding papers examining the relationship between attentional cueing and activity in V1?

I'm interested in reading on the influence of exogenous attention on cortical representations in early visual areas, but so far my google-fu seems to be failing me. There seems to be some literature ...
1
vote
1answer
263 views

What does double dissociation really tell us?

In psychological research, a single dissociation is when a manipulation leaves one cognitive function (say, A) intact whilst severing another (say, B). This indicates the functions A and B are at ...