9
votes
1answer
255 views

How does neural spiking begin in the fetus?

I'm interested in modeling human brain spiking activity. How does the very first spiking activity begin in the fetus? I imagine all spiking activity is initiated by the senses and internal ...
2
votes
2answers
140 views

What is the study with the dual-task experiment that involved a colour-wheel change detection task?

This may be a long-shot, but I'm looking for a paper that I vaguely remember reading a few years ago. Unfortunately I can't remember many details about the paper or its content, and thus my multiple ...
9
votes
2answers
566 views

In what ways can neurons fire randomly?

When developing a model of a biologically-plausible neural network, it is important to know all the circumstances under which neurons can fire. But, I am limiting this question to random firing. In ...
7
votes
1answer
324 views

What are the characteristics that make complex problem solving complex?

In real-world problem-solving tasks that many people call "complex" (like flying a jet, programming, fixing a car, fighting a fire - the type investigated by the naturalistic decision making ...
15
votes
2answers
582 views

Does the fusiform face area in patients with Prosopagnosia (face blindness) show lower activity under an fMRI?

I watched last night's episode of 60 minutes about Prosopagnosia (Face Blindness) and found it absolutely fascinating. They mentioned in the segment (Around 5:22 into the second part of the online ...
10
votes
3answers
204 views

Is there a random walk theory that can account for situations with more than two choices?

In the article "Two-stage Dynamic Signal Detection: A Theory of Choice, Decision Time, and Confidence" from 2010 by Pleskac and Busemeyer, a random walk model is presented for situations where a ...
8
votes
1answer
226 views

Is performance reducible to brain activity in an unambiguous way?

As a preface, let me assume that the entirety of mental states and their corresponding behaviors in a person are entirely reducible to the physical activity of neurons sending a variety of chemicals ...
3
votes
1answer
1k views

What is the difference between IQ and Executive Function?

I was reading an article today that stated that people with high IQ's that have trouble with social skills, memory, being punctual (on time), emotional control, and "growing up" are likely to have ...
22
votes
3answers
1k views

What are some of the drawbacks to probabilistic models of cognition?

Probabilistic approaches to modelling cognition are increasing in popularity and being encouraged within the field (Chater, Tanenbaum, & Yuille, 2006). What are some of the arguments against or ...
11
votes
1answer
305 views

Under what conditions does 60hz video produce visual artifacts?

There are some important thresholds of frame rate in video playback that effect whether or not animation appears fluid. This wikipedia page about Visible Frame Rate suggests that a framerate of 60 ...
13
votes
4answers
7k views

Is pedophilia a sexual orientation or a mental disorder?

There are some different claims being made that pedophilia is a sexual orientation rather than a mental disorder. At the moment there seems to be a growing group of psychologists advocating that ...
7
votes
1answer
159 views

Why is a lack of response to punishment in adults considered significant in diagnoses?

It seems that a lack of response to punishment is often considered useful in diagnosing conditions or symptoms. A good example of this may be in diagnosing psychopathy, in which a lack of response to ...
4
votes
1answer
232 views

Computational differences between spiking neural networks and previous ANNs

This is an AI question regarding "3rd generation neural networks" - spiking neural networks (SNN). I hve been studying this concept online from various papers, mainly Maass (1997). I and am not ...
10
votes
2answers
159 views

Perception of probability of being right

The probability that people percept may be different from the real one due to a number of factors, including the form in which their are presented, their context and biases (due to misinformation or ...
7
votes
2answers
337 views

Are there any open access journals in the cognitive sciences with impact factor >1

Impact factors are scores assigned to journals which indicate how often, on average, articles are cited. Impact factors are published in Journal Citation reports of Thomson Reuters. These reports ...
2
votes
1answer
109 views

Combinatorial woes

I am interested in the creation of chunks (aka configural nodes) from smaller chunks and input features (only interested in System 1 cognition). Unitization studies (e.g. Goldstone (pdf)), suggest ...
9
votes
0answers
78 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 ...
7
votes
1answer
132 views

What is the effect of merely expecting an interruption on performance?

There's a lot of research about how interruptions affect cognitive performance. Are there any studies that have looked at the effect of merely expecting to be interrupted (withou being actually ...
4
votes
1answer
557 views

Do some Photosensitive epileptics desire seizures?

It seems absurd, but from the Wikipedia article on Photosensitive Epilepsy: Some PSE patients, especially children, may exhibit an uncontrollable fascination with television images that trigger ...
4
votes
1answer
56 views

Asaccadia adaptation

Can asaccadia (i.e., lack of saccades, due to neuronal or muscular damage) be overcome? Do other muscles (e.g., neck) compensate? Are the resulting gaze patterns the same as for saccades, and are they ...
3
votes
2answers
189 views

Is it a good idea to play an instrument while studying? If so, what are the benefits?

We've all heard that listening to classical music and such while studying can be beneficial, but I was wondering about actually playing an instrument? If I were to absentmindedly play my accordion ...
10
votes
3answers
14k views

Can sleep become addictive?

Can a person become dependent on sleeping (more than they otherwise physically need) in a way that fits the definition of addiction, in the same way some psychology professionals may describe a person ...
4
votes
1answer
222 views

Is Decision-Making Emotionally Based, with Rationalization as the only Conscious Component?

My interest is in how problem-solving decisions are made, and what, if any skills could be taught to increase people's ability to make effective decisions? Effective, in this case, means that an ...
12
votes
4answers
844 views

Running on autopilot

Sometimes, people say that they are "running on autopilot", meaning that they are doing the things that they normally do, without any real conscious involvement. I have read that it is not uncommon ...
18
votes
5answers
597 views

Can response time be incorporated into signal detection theory?

In signal detection theory, one typically uses "signal" and "no signal" responses to analyze the data (that is, the analysis is based on a discrete choice for each trial, effectively generating the ...
17
votes
1answer
1k views

Is there a reduction of “Brain Fog” with fewer hours of sleep?

I've heard patients who complain of "brain fog" (and fatigue) claim a reduction in "brain fog" (and more mental clarity) when they get fewer hours of sleep (usually less than 5.5 hours). Here I'd ...
15
votes
2answers
537 views

Does any evidence show that Smartphone users have poorer memory?

An ages old complaint is that new technology harms memory. Why remember something when you can look it up? In a course on Human Memory I distinctly recall an interesting discussion on phones and ...
6
votes
1answer
297 views

What is the cognitive cost of switching contexts?

A common reason to use Conventions and standards in Human Computer Interaction is to limit the cost of Context Switching. I searched to find general evidence of the cognitive costs of context ...
7
votes
1answer
1k views

Is Apple's iPhone Retina Display really accurate to human eye resolution?

Apple based their Retina Display on the following claim, as cited by Wikipedia: The display has a contrast ratio of 800:1. The screen is marketed by Apple as the "Retina Display", based on the ...
7
votes
2answers
310 views

Behaviorist interpretations of decision field theory

Decision field theory is usually presented as a dynamic cognitive model of decision making. However, in its basic form, the theory seems to only be concerned with behavior (decisions) and stimuli ...
7
votes
1answer
102 views

What is a more modern interpretation of the terms egosyntonic/egodystonic?

Egosyntonic thoughts/ideas are those that are consistent with self-image, and egodystonic thoughts are recognized as inconsistent. For example, in obsessive compulsive disorder, the patient will ...
13
votes
2answers
762 views

Does super-intelligence necessary lead to consciousness, self awareness, freewill or emotion

After seeing this talk, the question popped in my mind. The idea is that as soon as a system is complex enough or intelligent enough, it able to act on its own. It seems to be a common belief. For ...
5
votes
1answer
160 views

Why is it common for people to default to a single causal source to explain new phenomena?

I am constantly bombarded by allegations that almost every relatively unusual event is the result/proof of some conspiracy/plan set by a specific powerful entity. The typical reasoning behind such ...
13
votes
2answers
304 views

What concepts of perception should designers be aware of when designing?

Visual perception is a huge topic, much of which is relevant to the work of a designer. I have identified topics in visual memory, visual cognition and colour perception that are relevant, and I'm ...
4
votes
2answers
212 views

Is there a psychological model or theory that describes strangers in the vicinity unknowingly causing discomfort?

The closest thing I found to this is social anxiety or agoraphobia, which is a fear of socializing or a fear of public places, respectively. However, I think the idea that strangers can cause ...
6
votes
1answer
434 views

What are the purported mechanisms of eidetic memory and why is it comorbid with autism?

Eidetic memory, often called "photographic" or "flashbulb" memory, is often associated with amazing feats of recall. Is the mechanism behind this phenomenon an aberration of the visualization of a ...
17
votes
2answers
438 views

Do the neural substrates behind motivation to retain/dispose of property govern whether certain people view their friends and partners as possessions?

I'm trying to understand why people have sometimes have the ability to sever ties with valuable connections, e.g., people that have up until that time meant a lot to them. Colloquially, people use ...
15
votes
3answers
6k views

Positive and negative reinforcement and punishment effectiveness

According to Skinner, positive reinforcement is superior to punishment in altering behavior. As Skinner discussed, positive reinforcement is superior to punishment in altering behavior. He ...
20
votes
8answers
2k views

How can I create computer based psychology experiments using OS X?

I've used E-prime to create computer based psychology experiments (you know, the kind where you for example show a number of pictures to the participant and record their responses to them, for example ...
7
votes
1answer
111 views

Why aren't sleep measures consistently measured as mediators/moderators of cognitive performance?

Knowing that sleep quantity and quality affects cognitive performance across many domains, why aren't pre-test sleep measures or intra-test measures of arousal a standard part of all cognitive test ...
12
votes
10answers
1k views

Are there any cognitive test (or test suites) available on the iPad?

I find the IPad to be a great piece of hardware that is easy to bring along and that has an intuitive touch interface. This would make it an ideal platform for many cognitive tests such as n-back. As ...
11
votes
1answer
203 views

Is dissociative identity disorder a medical condition or artifact of psychotherapy?

The popular media has offered such examples as "Eve" (based on Chris Costner-Sizemore) and "Sybil" (based on Shirley Ardell Mason) as sufferers of dissociative identity disorder (at one point known as ...
10
votes
2answers
246 views

References for biologically plausible models of knowledge representation?

I'm looking for references that deal with the issue of how various kinds of semantic knowledge are (or might be) represented neurally. Most of the discussion of this topic seems skewed by social ...
15
votes
2answers
394 views

Do we understand the non-subjective mechanisms behind pleasure and pain?

If we are to view pleasure and pain as being essentially synonymous with the more mechanistic concept of reward and punishment (i.e. as a part of learning and motivation system) then do we understand ...
14
votes
1answer
502 views

What is a validated single-item measure of mood?

Has anyone validated, proposed or tested a single-item state-based positive affect or happiness measure? I am particularly interested in something for tracking mood every day.
9
votes
2answers
265 views

Does Facebook activity predict job performance?

I've seen a little bit of discussion in the media about Facebook being used in selection and recruitment settings. Assuming an employer can gain access to a person's Facebook profile, have any ...
16
votes
2answers
711 views

Are spaced flashcards effective for learning?

Several apps and sites offer flashcard-based learning that repeat the cards you do poorly on over a period of time (the more inaccurate the answer the closer to each other the repetitions are). One ...
9
votes
1answer
161 views

When is higher confidence predictive of less accuracy?

Normally, when an individual is more confident in a particular response (e.g., memory decision, general knowledge answer), he or she is also more likely to be accurate. There are also studies in which ...
12
votes
2answers
799 views

What is the term for when too many choices results in inability to decide?

A common problem is that when offered too many choices, consumers give up and make no choice. Too many options results in no sale where fewer options might have resulted in more sales. It's like the ...
8
votes
1answer
277 views

Is positive self-talk beneficial for those with low self-esteem?

According to the paper Positive Self-Statements: Power for Some, Peril for Others by Wood (2009) positive self-talk is beneficial when the person has a reasonable level of self-esteem in the ...

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