# All Questions

5,780 questions
41 views

### Unilateral vision in split brain subjects

I am just beginning to learn psychology and came across concept of split brain. I was wondering if a person has only left eye working and has their corpus callosum cut, would they be effectively blind ...
106 views

### Why do some people undergo sudden savant syndrome?

According to https://blogs.scientificamerican.com/observations/brain-gain-a-person-can-instantly-blossom-into-a-savant-and-no-one-knows-why/, sometimes somebody suddenly becomes a savant. I don't know ...
327 views

### Are there any significant alternatives to the theory that the mind exists?

Are there any psychological models which do not presuppose the existence of the mind? In the same way that there are theories of physics which do not presuppose the existence of a luminiferous ...
68 views

### Volition v.s. Cognitive Control v.s. Motivational Salience

The concepts of volition, cognitive control, and motivational salience, seem quite similar. From the perspective of layman, they all seem to mean "the extent to which your goals influence your ...
24 views

### How to control subject's response bias in 2-interval force choice task

I am using a two-interval force choice (2IFC) task to estimate detection threshold and choose an appropriate signal level for my following experiment, by estimating sensitivity ($d'$) for each signal ...
73 views

### How is intelligence in children measured?

Intelligence is dependent on mental age and education. So how can an IQ test be performed to check the mental/intellectual capabilities in children?
20 views

### Fit a psychometric function when the maximum is not 100% (not because of lapse)

I found that currently the form of psychometric function assumes that the proportion correct lies between 0.5-1 given the range of stimulus level, but how to fit a psychometric function when the ...
21 views

### Social Media and General Addiction [closed]

I have a question made of four aspects on addiction and dopamine neurobiology. 1. I'm currently wondering whether the addictive potential of social media can be quantified. I'm aware it probably ...
20 views

### What prevents us from asking, 'What don't I know'? [closed]

The barcode on the package from the deli sticks to other items and gets slightly ripped. I then spend a lot of time at the checkout entering the barcode and entering it incorrectly. I can't find '...
74 views

### Bounds on skew and kurtosis of IQ

The question of whether IQ is Normally distributed, or instead follows e.g. a Pearson type IV distribution, has been debated since at least the 1910s. The quotient- and deviation-based definitions ...
85 views

### Why do we forget what we try to remember?

Almost everybody has had an experience where someone asks them what their favorite book is, and they immediately forget every single book they have ever read. This infuriating consequence of ...
90 views

### If the optic nerve transmits to both hemispheres, how do split-brain experiments work?

From what I understand, the optic nerve of each eye transmits information to both hemispheres of the brain. This is unlike other sensory and motor information, where (for example) the right hand is ...
33 views

### Linguistic & cross-cultural perceptions of typography

I have moved this question over from ux.stackexchange in the hope that it is a better fit for this forum and will get a few answers There is a great deal of information that one can find on the web ...
88 views

### Why are we the smartest species on the whole known universe?

Why? One possible reason would be because intelligent give humans, and only humans, evolutionary edge compared to their peers. Gorilla, for example, are strong because strength give Gorilla ...
114 views

### How to test people's compatibility for friendship

I'd like to have a test that would predict whether two people will get along (enjoy conversation and possibly become friends) if they try? The idea is simple: many people pass the test and then, by ...
31 views

### To what extent is control over when a substance is used relevant to addiction?

For example, let's say someone uses X amount of heroin a week, and no more than Y a day. If somehow their arm is connected to a device that randomly (unpredictably, but within their "waking leisure ...
65 views

### What is the term for doing things or behaviors that contrast to what you really feel?

For instance a person who is racist wanting to hire black people because they want to project an image that they aren't racist. Or if they doesn't like obese people but still interacts with them to ...
103 views

### Sex With Ghosts - Possible Clinical Diagnoses

Spectrophilia, is described by Wikipedia as the sexual attraction to ghosts or sexual arousal from images in mirrors, as well as the phenomenon of sexual encounters between ghosts and humans. A quick ...
52 views

### Getting useful readings out of GSR sensors while moving?

I'm currently thinking about a project that would involve using a GSR sensor and an Arduino (Probably the Grove GSR Sensor) to measure Stress levels in a person. It will not be a research project, ...
32 views

### Does the way a popular behaviour is discussed affect whether it would be imitated?

I think I’ve came across a contradiction in relation to these two phenomenon. On the one hand there is the following example: there was a vintage advert against pollution whereby a lot of people were ...
44 views

### Solving for HR and FAR, given ACC and C

Lets say I have an equal variance SDT framework with an equal number of target present and target absent trials: $d'=Z^{-1}(HR)-Z^{-1}(FAR)$ $C=\frac{Z^{-1}(HR)+Z^{-1}(FAR)}{-2}$ \$ACC=\frac{HR+(1-...
87 views

### What tools exist to measure work meaningfulness?

Do you know of methods/tools/criteria used (in sociology, social psychology or occupational science) in order to evaluate how meaningful some particular work can be for a particular person? I am not ...
17 views

### Time perception in dreams? [duplicate]

Is time perception in dreams the same as time perception in waking life? There was an experiment that showed it was roughly true, (10 seconds in the dream is around 12 in real life), what causes this ...
30 views

### Would non-neural physiological insights be considered to be in the field of neuroscience?

For example, would e.g. SCR (skin conductance response) or hormone level be considered to be "neuroscientific measures" according to general definition of neuroscience?
28 views

### Are reaction time and memory physiological measure or behavioral observation?

I think that the choice made by a subject in a choice task should be behavioral observation. But I am not sure about reaction time and memory, which is more about ability instead of intention.
78 views

### When someone consumes finasteride, what happens neurophysiologically and what mental functions / faculties are altered?

Finasteride is a medication used to treat androgenetic alopecia (male pattern baldness) and enlarged prostates. Reported side effects include male breast enlargement, lowered sex drive, and headaches (...
70 views

### What is the proper definition of psychopathy?

I've seen all those checklists of psychopathy traits, read many articles and watched several tutorials - they mention like dozens of characteristics, but never make it clear about the actual meaning ...
43 views

### Terminology: why do psychologists use “positive” and “negative”?

In a lot of places in psychology - for example in operant conditioning and in describing symptoms of psychological disorders - various things are described as "positive" and "negative". Positive ...
23 views

### Exact Medical situation name for Guided Meditation/Visualization to “Re-live a moment”

There are lots of videos & audios for Guided Visualization for particular things like forest, beach, sky etc.. But what should I exactly search to get result for "ReLive past Moment". Is there ...
31 views

### Are there rule of thumb regarding sample size when neuroscientific measurements are used?

According to this paper, 10-25 subjects are enough for an fMRI study. However, regarding EEG, it only mentioned in this paper that some "authors concluded that the relatively small sample sizes (...
58 views

### how does our brain knows the simialrities between anything?

If I see your face today then I will recognize you if I see you tomorrow. There must be something similar will happen in my brain for both incident, since the inputs to my body/brain is similar(at ...
26 views

### Word for person showing psychological projection

Is there any single word for a person who shows more psychological projection (the defence mechanism of attribution of your own undesireable qualities to someone else) than a normal person? And is ...
84 views

### Why fear is the opposite of desire and not disgust?

Wikipedia page on desire has the following passage: A 2008 study by the University of Michigan indicated that, while humans experience desire and fear as psychological opposites, they share the ...
54 views

### How to answer questions that don't seem to be possible to be answered on a Strongly disagree - Strongly agree scale and what's their point?

I'm continuously being perplexed by psychological tests that display a lot of questions that don't seem to be able to be answered in a simplistic ways, but nevertheless simplistic answers are demanded....
82 views

### What is the human brain made of?

I read an article that stated that the human brain contains 60% fat. Is this fatty tissue structural building material? Or does it just serve as an energy source for the mitochondria? Since our body ...
30 views

### Why some papers suggest that losses and gains are coded by the same mechanism while other suggest that distinct circuits anticipate gain and loss?

In this paper, it states that "Consistent with neuroimaging evidence suggesting that distinct circuits anticipate gain and loss,..." However in this paper, it states "..., these results are consistent ...
34 views

### People do not like change, but need diversification? Is that not contradictive?

People generally resist change, yet they have a desire for diversification.Of course, both is possible. Just like the need of safety but the desire for new discoveries and adventures. But what is the ...
83 views

### Is it possible to effect both positive and negative reinforcement through the same action?

Consider the following scenario: a rhesus monkey is being put under severe duress somehow (isolation, sense of physical threat, whathaveyou). It is desired that a behavior, like pressing a lever, is ...
43 views

### Is the perception of drawings an acquired skill?

Most descriptions of visual perception explain how our brains interpret incoming visual stimuli (via feature detection, monocular depth cues, etc.). They then assume that the same process works for ...
54 views

### Visual field testing: Choose between Yes/No, 2AFC, and 2IFC task?

As a newbie to psychophysics experiment, I have a small project to do visual field testing on healthy, adult, naive subjects. The experiment stimulus is a small sine grating (0.3 degree, 6 cycles/...
29 views

### How is addiction distinguished from engagement when making a determination about a person's behaviour?

Based on some discussions over on another StackExchange forum site over a particular question about user engagement vs. addiction, it was suggested that the question be posed on the Psychology and ...
23 views

### Why do we dream? [duplicate]

Most of the people have their own imagination and most of them dream about many things and some time dream about those things which they have never seen, so how we will define the fact that why do we ...
38 views

### Is Freuds theory of negation testable and does it survive testing?

Freuds body of work not only provides a basis von clinical practice, but is also often quoted in social sciences and social philosophy. I recently came across a text that references Freuds concept of ...
18 views

### Nociceptor (possible threat signal)

I've read this on Wikipedia: A nociceptor is a sensory neuron that responds to damaging or potentially damaging stimuli by sending “possible threat” signals to the spinal cord and the brain. ...
60 views

### Free-to-use parenting style questionnaire

I'm working on a master's thesis in UX design that I might want to turn into a commercial project later on. The subject matter is use of Nonviolent Communication (NVC) in parenting. For the research ...
86 views

### Can logic be traced back to neurons?

In our everyday experience, and in both math and philosophy particularly, there exist some binary order in the sense that some statements can be classified as true or false. Does this have a ...
76 views

### Are the findings of the Rat Park experiments applicable to porn addiction?

Many people say porn is addictive, but the conversation around this sounds quite similar to the conversation around drugs - https://www.yourbrainonporn.com/ https://www.ncbi.nlm.nih.gov/pmc/articles/...
20 views

### What is the difference between an Atlas and a Parcellation?

I come from a computer science background and am just starting out in the area of analyzing brain imaging data (fMRI predominantly) and while going through some of the literature, I am kind of ...