3
votes
3answers
53 views

Qualitative scoring for responses to design fluency task

Before I can ask my questions, I have to give a little background information. I'm involved in a study using a measure of design fluency. Subjects are shown a page full of squares, like the one ...
11
votes
2answers
358 views

Fitting a psychometric function when data does not lend itself to a sigmoidal fit

I'm fitting a psychometric function to a range of data. The majority of this data lends itself to a sigmoidal fit (i.e. participants can do the task), but some individuals are absolutely unable to do ...
1
vote
1answer
36 views

Studies of how people learn to solve puzzles

I would like to build a cognitive model that is able to learn how to solve a complex puzzle such as the tower of Hanoi based off of limited feed-back (set of valid moves, closer to goal, farther from ...
3
votes
1answer
55 views

Analysis of RTs when speed-accuracy trade-off leading to ceiling accuracy has occurred

I know that it is not desirable for behavioural data to show a (within-subjects) speed-accuracy trade-off, as it can lead to e.g. the wrong interpretation of a single subject's decreased RTs as ...
21
votes
2answers
4k views

How to reliably measure working memory capacity?

The capacity of human working memory is subject to individual differences. The number of items or chunks a person can retain in their memory may, have profound effects on a variety of other cognitive ...
1
vote
0answers
8 views

Talk for lay audience: determining private traits and attributes from online behaviour

This question was referred from Cross-Validated Stack Exchange: I need to give a talk on statistic / machine learning as applied to determining an individual's traits and attributes from online ...
5
votes
1answer
57 views

What is the neurophysiological mechanism behind double hearing?

A patient with sensorineural hearing loss can have the symptom of hearing "double" in the damaged ear. Not having a time-delayed echo, but hearing as if he (or other people) speak with "two voices" at ...
27
votes
3answers
1k views

What are current neuronal explanations and models of 'consciousness'?

I would like to understand more about consciousness from a neuroscientific perspective. I have a limited understanding of it in the philosophical/psychological sense through lectures. Although it is ...
1
vote
0answers
22 views

Are adult negativity or resentment related to an infant crying for attention?

I've recently came across an idea, expressed by a spiritual author Ekhart Tolle, that for adults, the internal experience of negativity or resistance to life situations can be far more harmful than ...
4
votes
1answer
64 views

What's the optimal type of exercise to increase BDNF

It is known that exercise has a positive effect on BDNF (brain derived neurotrophic factor). BDNF has a positive effect on mood and cognitive abilities. What's the optimal way of exercising ...
1
vote
0answers
11 views

Analyzing movement data for a checkerboard

For a psychology experiment - subject has to learn that the 2D grid is a checkerboard, and collect all the 1s (rewards). How do I test if subjects are actually doing it in the most optimal way -- ...
3
votes
0answers
10 views

Relation between NEF and synchronous explanation of cognition

I'm having a hard time determining if synchrony (I'm talking about the type described in reference to the visual cortex as seen here and less about synaptic plasticity which also involves synchrony) ...
3
votes
1answer
24 views

Tests of Semantic Memory suitable for 10 to 18 year old

I'm trying to find a test of semantic memory for students. We're working on a programme to explore the impacts of exposure to nature on a student's academic abilities (hoping to pique teachers ...
4
votes
3answers
78 views

Where can I find online interactive versions of classic experiments in psychology for the purposes of teaching?

It's often useful and fun for students to experience well-known psychology experiments. Where can demo versions of famous psychology experiments be found online? Some example paradigms that might be ...
10
votes
2answers
126 views

Are the center surround receptive fields learnt or inherited?

I know that neurons higher in visual pathways can learn their receptive fields after birth, but what about the connections between bipolar cells and Amacarine cells which form center/surround on/off ...
3
votes
1answer
59 views

What are the main theories that account for why some people like X and others not? [closed]

For example, how does psychology account for why some people like peanuts and others hate them? This is a serious question, although perhaps naive. Sure, there can be some physiological explanations ...
1
vote
0answers
20 views

Is it possible to train the brain to percieve two different activities occuring at the same time as seperate activities?

Let us consider the effects of orgasm: Rapid contraction of the anal sphincter muscle and Ejaculation. These two separate activities occur as one activity during orgasm. So is it possible to teach the ...
0
votes
0answers
12 views

Generate 2D grid with alternation probability

I want to generate a 2D grid environment with rewards distributed (1s are rewards, 0s are no rewards) based on an alternation probability as defined in this paper by Falk and Konald ...
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 ...
1
vote
1answer
54 views

How to compute weights and bias for a McCulloch-Pitts neuron?

I am trying to learn how to manipulate McCulloch-Pitts neurons in order to determine their weights and bias based off of inputs. In this example I have inputs: x, y, z ∈ {−1,1} The neuron's output ...
3
votes
1answer
42 views

Where in the Big5 does shyness belong?

I just stumbled upon something contradicting: Some sources claim that shyness is a trait of extroversion(introvert) Some sources claim that shyness is a trait of neuroticism #4, self-consciousness. ...
14
votes
1answer
753 views

Can you catch up on sleep over the weekend?

The lack of sleep has many negative effects associated with it. Maintained sleep deprivation results in a degraded performance over time (in this case reaction time). Assuming one needs 8 hours of ...
3
votes
0answers
22 views

How to compare cumulative sleep debts?

Let's say that after a period of sleeping perfectly, I sleep for the following amount of hours on some consecutive days. (Let's say the optimal hours I sleep is 8 hours. For the sake of simplicity, ...
1
vote
0answers
25 views

How do afternoon naps fit in with segmented sleep?

Both segmented sleep and afternoon naps are recommended over a monophasic eight-hour block of sleep, but I don't see how they fit in with each other. Segmented sleep is the theory/hypothesis that ...
3
votes
0answers
31 views

Do people perceive opacity of a color linearly?

I am trying to create a visualization for some numbers, each ranging from 0 to 1. I was thinking of representing each number by a color (say red) of a certain opacity corresponding to its value. For ...
2
votes
2answers
54 views

Hebbian Learning - Understanding Simultaneous Firing

Im beginning to write a neural network simulator in Java and thinking of Hebbian Learning but Im stuck at one thing: What causes two neurons to fire at the same interval while only one of them is ...
4
votes
1answer
39 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
60 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 ...
1
vote
0answers
15 views

How are Bayesian models implemented in the NEF?

One of the much documented problems of Bayesian approaches to cognitive modeling is that there isn't much of a neural grounding. The NEF can be used to compute probabilistic computations with ease ...
2
votes
0answers
54 views

Ranking of produced “brain fatigue” from different mind intensive activities

I'd like to know if there has been an study, or different studies for each activity with which the ranking could be done, that determines a ranking like that with mind intensive activities, I refer to ...
1
vote
0answers
41 views

Description of an EEG experiment

I am working on Brain-Computer interfaces. In my project we try to control the movement of a robot in three directions, namely forward, right and left. We have done an EEG experiment where we have ...
5
votes
2answers
29 views

Are there any free online questionnaire/survey sites that also measure the time it takes for participants to answer each question?

I'm doing a research experiment where I'm trying to measure the time it takes for participants to answer certain questions in an online questionnaire/survey. More specifically, I will be asking ...
2
votes
1answer
85 views

What is “Attention” in terms of brain activity?

A rather basic question, but I don't know the answer to that - What is human "attention" that can be focused on different parts of the body or outside objects? For example, I can focus my attention ...
5
votes
2answers
90 views

How to test whether a person is Left-Eared or Right-Eared?

It is well-known that the majority of humans have left-right preferences when using their hands or feet. But it is perhaps less well-known that the same can be true for our eyes and ears. I once ...
1
vote
0answers
13 views

Is there evidence to suggest that the different and contrasting behaviours we collectively call 'sensitive' have a common root cause?

There appear to be two different meanings of the word 'sensitive' when describing people's behaviour: that the person being described lacks the emotional resilience to cope with an everyday ...
1
vote
0answers
14 views

What is the role of stress in the process of behaviour change (lifestyle)?

Clarification: I am specifically looking at lifestyle behaviour change. I suppose that stress can influence the process of behaviour change in many different ways. One would be just the changing of ...
7
votes
2answers
280 views

Is there a circadian component to mood variations in humans?

I'm looking at this question about an Experience Sampling Method (ESM) app: Longitudinal mobile mood tracking app with random reminders The studies linked in the question deal with sampling of user ...
1
vote
0answers
43 views

Is there any limitation in our ability to come up with a theory or hypothesis to understand brain? [closed]

We are observing the behaviors (either through behavioral experiments or observing brain activation through neuroscience experiments) based on the GIVEN TASK to the participants and trying to ...
1
vote
1answer
292 views

How does cognitive science explain the origins of intuition and intelligence, that accurately describes the laws of nature?

What is the origin of non-incremental, revolutionary intuition and intelligence? For example, a human mind like Albert Einstein's can "come up" with revolutionary ideas and theories that correctly ...
9
votes
3answers
76 views

How can I incentivize users to perform creative tasks?

Gamification is often used to incentivize people into performing small, repetitive tasks. For example, as a Stack Overflow user, I receive 2 reputation points for an accepted edit. I can earn badges ...
115
votes
6answers
5k views

How is it that taking a break from a problem sometimes allows you to figure out the answer?

As a computer programmer, I have noticed an interesting phenomenon: If I am stuck on a particular problem in my work, often if I stop thinking about the problem and do something else, the answer will ...
2
votes
0answers
57 views

Do more creative people have more unusual dreams? [closed]

Title says it all: Do more creative people have more unusual dreams?
3
votes
1answer
99 views

How strongly are creative ideas influenced by our environment? [closed]

Background : I was recently reminded of an abandoned project of mine that is related to railways and "green energy," so I started doing some Internet searches to see if there are any similar projects ...
2
votes
0answers
62 views

What are some theories on Cognitive model of Human Imagination?

I have no knowledge about neuroscience but recently I was wondering what is the cognitive model of human imagination? How does the human imagine things that don't exist? Suppose I ask anyone to ...
14
votes
7answers
442 views

Can creativity be taught?

I have heard of classes that teach 'creativity'. To me, the whole concept is absurd. I approached a student of the aforementioned class and asked him why he chose to learn creativity. He stated that ...
4
votes
1answer
87 views

Correlation between anxiety/calmness and innovation development?

Is there any research or clues about whether anxious/calm people are more/less likely to be inventive / creative / develop innovations? I am interested about this both on an individual and cultural ...
6
votes
1answer
95 views

Paul Ekman suggests that in near-accidents, fear motivates people to hit their car brakes. Is the fear response fast enough to do this?

Recall a time when you were driving your car and suddenly another car appeared, going very fast, seeming as if it were about to hit you. Your conscious mind was focused on an interesting ...
0
votes
0answers
75 views

Re-conditioning the brain to read words and symbols/numbers “visually” and changing the visual meaning of a word

The brain likes to attach meaning to newly learned words, usually in the format of images. I have no data to prove this but you can prove it to yourself simply by closing your eyes, relaxing a little ...
5
votes
1answer
38 views

Is there a way to use a STDP learning rule on rate-based neurons?

STDP (spike timing dependent plasticity) is a learning rule for changing the synaptic weights between neurons. It is Hebbian-like in that the weight changes depend on the coincidence of pre- and ...
4
votes
0answers
76 views

Why does marijuana cause an increase in anxiety?

Marijuana has a lot of effects that benefit people who need it medically. However, one of its disadvantages is anxiety. Does anyone know the reason behind the anxiety? Is it from the marijuana itself ...

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