11
votes
3answers
235 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 ...
11
votes
2answers
3k views

What transient factors affect performance on IQ tests?

While performance on intelligence tests aim to measure an underlying relatively stable trait, there are presumably a range of transient factors that could temporarily lower or possibly even raise ...
11
votes
1answer
280 views

Is there a practical limit to the amount of knowledge a human can learn?

There's definitely progressive interference and retroactive interference, which are basically two ways that old memories and new memories can interfere with each other. But on the other hand, do ...
11
votes
2answers
295 views

What is the support for a global personality factor?

The Big 5 is a popular framework for describing major factors of individual differences in personality. More recently, I've been hearing people talking about the utility of conceptualising personality ...
11
votes
1answer
516 views

To what extent are correlations of father's age with birth defects and autism causal?

I read the following in the paper today: Dr Karin Hammarberg ... said that while most children are born healthy, large studies of parental age were starting to show higher rates of birth ...
11
votes
2answers
166 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 ...
11
votes
1answer
496 views

What are biological primary mathematical skills?

In doing a bit of background reading for this question I came across a section in the book Cognitive Neuroscience: The Biology of the Mind on page 602 stating: There are no sex-related differences ...
11
votes
2answers
371 views

What are different ways to determine centroids of fMRI activation, their drawbacks and perks?

I'm reading an older article on bilingualism (Kim, Relkin, Lee, & Hirsch, 1997) for a seminar. They were interested in the spatial separation of two languages in early and late bilinguals. They ...
11
votes
3answers
271 views

Are there third party providers of Mechanical Turk psychology experiment services?

For various reasons it can be difficult to run a Mechanical Turk experiment (i.e., you don't have the technical expertise, you don't reside in the United States, etc.) Have any third-party providers ...
11
votes
3answers
4k views

Why do people talk fast in presentations when nervous?

I was at a professional development seminar today, and the presenter, while being interesting and knowing his subject admitted to being nervous and was speaking very fast. I know I do this when I am ...
11
votes
3answers
205 views

Is there any recent work on modeling how we rapidly acquire new knowledge?

I work with neural network models of human cognition a lot, and one thing that bugs me about them is the timescale: they learn over thousands of trials whereas humans seem to learn after a couple ...
11
votes
2answers
188 views

Do the students that report “friendly” teachers perform better on standardized tests?

I'll preface this by saying that I've been considering this question in light of the "Summer of Love" initiative and subsequent blog posts, which are looking at the extent to which comments are ...
11
votes
1answer
252 views

Why do participants prefer to give input values that are “round numbers”?

Background I have just been analysing some data where participants attempt to control a dynamic system with integer numeric inputs between 0 and 100. I've noticed that there is a general tendency for ...
11
votes
1answer
332 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 ...
11
votes
1answer
358 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 ...
11
votes
1answer
864 views

What's the relationship between priming and anchoring?

I've recently been dabbling in the behavioral literature, reading about cognitive biases such an anchoring, when one of my friends asked me how this phenomenon differed from the classical cognitive ...
11
votes
2answers
257 views

How can the success of Bayesian models be reconciled with demonstrations of heuristic and biased reasoning?

In recent years, Bayesian models of cognition have been used - with considerable success - to explain human reasoning in a variety of inferential tasks (Chater, Tenenbaum, & Yuille, 2006). These ...
11
votes
1answer
137 views

Have there been any studies which report a positive correlation between eating certain foods and reported sleep disturbances?

This Skeptics question touched on the subject, but I'm more focused on studies that have been conducted under highly controlled circumstances, like a university sleep lab. We've all heard these old ...
11
votes
1answer
929 views

How well can a human-generated “random number” be predicted?

For example, if i ask an individual to write a 20-number-long sequence of random numbers from 0 to 10. How well can I predict the 20th number from the initial 19? More generally, How well can ...
11
votes
1answer
173 views

Problems with using personal feedback to motivate participation in an online psychological experiment?

I am planning on running an online psychological experiment where participants must learn about various simulated environments and then make inferences about them. Because completing the experiment ...
11
votes
1answer
423 views

Sensory Immersion Research?

Sensory deprivation is a relatively common technique for medititation and general consciousness-exploration. However, I'm more interested in sensory immersion. That is, deliberate overstimulation as ...
11
votes
3answers
127 views

Are there any pragmatic uses of hallucinogens?

Hallucinogens (psilocybin, LSD and others) are often regarded as risky substances, therefore they are banned in most places. Are there ways of using these substances that can be beneficial? Or in ...
11
votes
2answers
196 views

Can the Philosophy thought game “The experience machine” be answered by Positive Psychology?

In Philosophy, a thought game exists called "The experience machine" {1}. In summary, it's a machine you plug into that enables you to always experience positive events, and never negative ones. One ...
11
votes
1answer
415 views

What are the effects of alcohol on muscle memory?

Muscle memory (also referred to as "motor memories") is a form of procedural memory, which is a form of implicit memory. I'm particularly interested in trained tasks like throwing a dart, shooting a ...
11
votes
1answer
252 views

What causes laughter?

I was looking at this video from VSauce: "Why did the chicken cross the road?", where several facts about this old joke are exposed and explained. At some point, (6:59) Michael explains that there is ...
11
votes
1answer
273 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 ...
11
votes
1answer
90 views

Are staircases more efficient than the method of constant stimuli?

A Bayesian Quest adaptive procedure (Watson and Pelli 1983) is the theoretically most efficient procedure for estimating thresholds under a certain, potentially unrealistic, set of constraints. In my ...
11
votes
1answer
219 views

At what point does a complex become pathological?

I've a first question so I apologize if the format is completely awry. I'm reading Meeting the Shadow: The Hidden Power of the Dark Side of Human Nature and I came across this passage by Edward C. ...
11
votes
2answers
234 views

Are introverts more talkative in written form than extroverts?

We all know that extroverts are in general more talkative than introverts in oral form. But how about written communication? After having talked with lots of people on the internet and met several of ...
11
votes
1answer
700 views

Why do humans like being touched?

I wonder why people like to be touched so much, why would it make sense from a evolutionary perspective. I know people enjoy hugs and company of opposite sex but even people from the same sex hug and ...
11
votes
1answer
235 views

What is the influence of “effort put into pursuing wealth” on happiness?

As presented in the TED talk by Mihaly Csikszentmihalyi (3:30) repeated research has been unable to show a correlation between happiness and level of material wealth (above a certain minimum ...
11
votes
1answer
104 views

Why a person may have a temptation to do something unrelated when doing especially important thing?

I would like to know, why a person may have a temptation to do something unrelated (or slightly related to his current task) when doing particularly important job? Like, when preparing for an ...
11
votes
1answer
146 views

Bias towards purchasing tangible vs virtual goods

People may have very little hesitation in spending $3 on a coffee once a week, but when it comes to buying things online, such as virtual goods or services, they are often much more reluctant. Is ...
11
votes
2answers
361 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 ...
11
votes
1answer
163 views

Food sharing and mutual aid among the homeless

Since the time of Peter Kropotkin, it's been observed and theorized that cooperation and mutual aid are more common in austere environments. A classic biological example would be slime mold ...
11
votes
1answer
279 views

Does dopamine signal become stronger when goal distance is defined using time?

Howe et al (2013) found that a dopamine signal becomes stronger as a goal is approached. The experiment involved rats running in a maze. If the rats were close to solving the maze, the dopamine signal ...
10
votes
4answers
3k views

Why is recognition easier than recall?

The main ways of memory retrieval are recognition and recall. Why has it been found that recognition is "easier" to perform, meaning it is usually faster or is more likely to yield an accurate ...
10
votes
6answers
3k views

Where to post online psychology studies for participant recruitment?

A common challenge when running psychological studies is getting enough participants. Of course, there are many general strategies for recruiting participants, but I was specifically interested in ...
10
votes
5answers
336 views

Visual search: complexity of positive vs negative search tasks

Thinking about experiments where participants perform visual search tasks, I remember hearing in a Cog Psych lecture that if the instructions of the task were of the form "find the element that has ...
10
votes
2answers
1k views

What term describes people that cannot feel pain?

I remember a case study about a girl who could not feel pain due to lacking certain somatosensory receptors; she went on to burn herself on a radiator because she could not feel her flesh burning and ...
10
votes
2answers
4k views

How is fasting related to insomnia?

Yesterday I started a new diet using intermittent fasting. For this reason I only ate one meal all day. I was pretty surprised how well I passed that day: I studied a lot, did some sports and ...
10
votes
5answers
162 views

Web-based tools for documenting studies?

I am interested in how open science could be done in psychology. Are there good web-based tools that could house and share a study? When I say "study" I mean: Lab notes from collecting data Raw ...
10
votes
5answers
225 views

Which human instincts do gamification systems appeal to?

As a Stack Exchange user, I spent quite a while thinking about how they managed to trick me into putting so much effort into it. Reputation, badges, etc., are all virtually useless, yet I put great ...
10
votes
3answers
435 views

Why are mind maps recommended for study and recap?

In both my last year of high school and my freshmen year at the university, I got strong recommendations to study using mind maps - especially because this is apparently better to cope with large ...
10
votes
3answers
705 views

Neurotransmitter based imaging techniques

All the brain imaging techniques I know fall into two categories: Tracking blood Either by looking at the magnetic (fMRI), or near-infared absorption (diffuse optical imaging, NIRS) properties of ...
10
votes
2answers
2k views

What is the relation between measures, constructs and concepts?

It is uncontroversial to say that the cognitive sciences do not exclusively deal with directly observable phenomena, but nonetheless aim to study the physical causes of behavior and cognition ...
10
votes
2answers
129 views

Who first used the term 'heuristic' in a cognitive science context?

I seem to recall that Herbert Simon borrowed the term from computer science, but I cannot remember the initial paper in which he made use of this borrowing. A google scholar search reveals some ...
10
votes
3answers
24k 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 ...
10
votes
2answers
310 views

How does the brain act on the information gained via eye saccades?

I've often heard that the process of saccading can be described as a statistical sampling technique. Specifically, the standard textbook definition of the function of saccades seems to be that the ...
10
votes
2answers
291 views

Bias by which we tend to accept vague descriptions of ourselves

There's an effective strategy employed by horoscopes and "psychics" where they say vague statements like "You like being with friends but you value your time alone"; statements that basically "cover ...

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