# All Questions

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### A state model of sodium channels

I am studying by myself Human Physiology. I have encountered the following question: In the following given model of sodium channel with 3 states open closed blocked (which I assume means ...
40 views

### What prevents a neuron from activating an incoming synapse?

As is known, a neuron can have incoming and outgoing synapses. When a neuron fires, what does prevent that only outgoing synapses are activated?
23k views

### Why would the brain flip the images perceived by your eyes?

The following is a common scientific statement, which you don't have to google long for to find: The eye views images upside-down in the manner of a camera lens, but our brains reinterpret this ...
14 views

### Voltage sensitive dyes technique: 2-photons microscopy vs confocal microscopy

I just discovered voltage sensitive dyes technique and I was wondering what would be the advantage to use 2-photons microscopy compared to confocal microscopy? They are both fluorescent techniques ...
22 views

### Can a neuron fire when hyperpolarized?

Is there any chance that a neuron could fire when hyperpolarized? In that case the spike would probably be different than usual?
39 views

### Are there any studies that suggest an evolutionary advantage of dreaming?

I've read the answers to this question. But I'd like to ask if, besides those suggested hypothesis, has anyone ever suggested that the advantage of sleeping could be to allow a profound state of rest ...
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### Is there any evidence of Maslows Hierarchy of needs and Csikszentmihalyi’s Theory of flow in a sports psychology context?

Is there any content available that could help me relate the stages of both theories to sport?
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### If I think of a checkerboard, is there a similar structure to see in my visual cortex?

When I´m imagining a checkerboard in my mind, can one find, with all kinds of fancy equipment, a corresponding figure in the area of my visual cortex? For example, the neurons firing in such a way as ...
26 views

### What's this cognitive bias that relates to misremembering exact stimuli?

Say a participant is shown a reference stimulus of white colour. Afterwards, they are shown a number of test stimuli that range from yellow to blue like this (yellow -> less_yellow -> whitish -> white ...
26 views

### What is the phenomenon where a person inexplicably feels that a word is spelled wrong? [closed]

Sometimes, I get the inexplicable feeling, which also happens to be maddening, that the word why is spelled wrong. In my mind, for a few seconds at least, the spelling doesn't match with the word at ...
35 views

### Do we know what is happening inside the brain when a person is hit in the head?

For the purposes of this question, I will use the example of a legally sanctioned athletic contest (i.e., a boxing match), rather than criminal activity or accidents, but the question certainly ...
47 views

### Peer relationships measurement

Is there a method for measuring peer relationships in university students (e.g., a questionnaire)? I am looking for a questionnaire that can be used to asses the level of peer relationship among ...
50 views

### Caller's dilemma [closed]

A close friend, who is going through a mentally rough and disturbed period, just called me, and it made me come up with a question. You call a close friend and someone picks up; but you're not sure ...
10k views

### Difference between Instinct and Intuition

Sometimes I've heard people using the term gut feeling rather than their 'intuition or instinct' and I'm not sure which one do they mean. So, can both the terms be used interchangeably and simply ...
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### Difference between GALIS and NEF/SPA?

The Gated Attractors Learning Instruction Sequences (GALIS) framework, used to solve a card-matching task, as well as the n-back task, appears to be trying to unite high-level symbolic reasoning to ...
99 views

### Is it possible for a person to have anterograde amnesia and be aware of it?

In "Memento" the main character has got anterograde amnesia, but he's aware of it. Is it even possible and how, if it is? Compare it to "50 First Dates" — the heroine is not aware of her ...
251 views

### Human behaviour in one-shot perfect information games

Background A one-shot game is one where two participants have some set of actions $\{1, ... , n\}$, they make their decision on which option to take (without knowing the decision of their partner, or ...
13 views

### Consciousness and neural grafting

You have two friends: Alice and Bob. Suppose you have a way to remove a healthy neuron from Alice's brain and conserve it in some safe place. And, viceversa, suppose you have a way to graft this ...
17 views

### What does O- mean in a NIFTI file name of an MRI?

I am exploring brain MRI scans. Using MRIConvert, I converted dcm files to NIFTI. Some of the outputted NIFTI files have O- in their filenames and I could not figure out what does it mean. Example ...
707 views

### What effect do random visitors have on children in orphanages and people in old age homes?

Leading a volunteering team, I've been to an orphanage where the sister (who did a psychology course) running the orphanage was strict that volunteers should spend a minimum of 3 months teaching the ...
2k views

### What is the scientific support for Einstein's claim about the negative effects of reading too much?

Einstein once said: Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of ...
33 views

### Can MBTI be measured objectively?

I'm trying to figure out how MBTI would be operationalized in scientific research. How could one operationalize the different types, E, I, N, S, T, F, P and J? How could one look at numerical ...
371 views

### is it possible to think without language?

I'm trying to fathom what it might be like for a person with aphasia and for one with agnosia. For a person with a visual agnosia I wonder this: if two unrecognizable objects are shown to them, and ...
63 views

### What's the opposite of major depressive disorder?

Bipolar disorder, BD, involves manic episodes and depressive episodes. If someone has a depressive episode, that person may have major depressive disorder, MDD or BD. If someone has a manic episode, ...
537 views

### Open fMRI data?

Are there any open fMRI datasets available on the internet? Experimental design doesn't matter much, since I would be working towards a new data analysis method. If the distributed data has been ...
49 views

### Bragging is bad for your reputation… but there is one exception: What is going on? [closed]

It might be that this question is not suitable for this SE site so feel free to close. Several scientific studies prove what we all kind of know: That bragging is being frowned upon - see e.g. this ...
137 views

### Subliminal Persuasion: best chances of success

A lot of people are skeptic about the impact of subliminal messages. Good research and experiments on this topic are hard to find. Therefore, I want to execute an experiment on this topic. To do ...
12 views

### Is there a scientific opinion about the connection between Asperger Syndrome and AD(H)D?

I have Aspergers and ADD. When I read autobiographies (most of all by female aspergers) I often think that they have actually at least a mild form of ADD or ADHD, too. A German doctor (Dr. Helga ...
39 views

### Is it known how the brain corrects the world-up-side-down-view of our eyes? [duplicate]

Because of our eye functioning as a camera obscura the light entering our pupils is hitting the retina of the eye in opposite directions. So what is left becomes right and right left and above becomes ...
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### Is INTJ mbti-personality better suited to do a physics degree or medicine/biology degree? [closed]

So which one? I find physics fascinating but biology easy.
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### Is there anything called Genetic Anxiety?

We inherit a lot from our ancestors, but how much the term Genetic Anxiety is true, and if it is true, can it be cured through the same ways(CBT, Exposure Therapy) or it has to be dealt with ...
33 views

### Mapping Sustained Attention on the brain (EEG)

I am doing a study to the effects of sustained attention on Situation Awareness, i.e. how well one perceives and understands the relevant information in their direct environment (in both space and ...
24k views

### Why are some people unable to easily memorize the lyrics to a song?

Although I have listened some songs hundred of times I can't sing the lyrics to any of these songs from beginning to end without pauses. However I am able to whistle the whole song without difficulty. ...
19 views

### Does difficulty of task increase perceived authority?

I'm writing a research paper and I'm wondering if someone can help me out by throwing out a few terms. I'm looking for a theory that talks about how the more difficult a task is, the more ...
1k views

### What is the difference between hypnosis and meditation?

It seems that many people say that hypnosis and meditation are very similar. But what are their key differences (both in a soft and hard way)?
30 views

### Difference in perception by left and right eye

I am observing an interesting phenomena regarding vision. I notice some difference in how my left and right eye is working: - my left eye is more sensitive to motion in a scene. - my right eye is less ...
85 views

In modern comic book fiction, a superhero wears a partial mask to obscure their identity. This mask is properly known as a "Domino Mask" Now obviously these masks are not the most effective masks ...
57 views

### Biases in subjective survey

What are the commonly observed biases in survey and are there any statistical or non-statistical methods to avoid it? I am conducting a survey for automobile seat comfort, I think my current ...
17 views

### Unbounded fears and bounded fears

Can anyone explain these two terms with example in real life situation? I am wondering over it when I came across Dan Gilbert's lecture about 'The surprising science of happiness' Does that simply ...
27 views

### Does color constancy overestimate?

Consider I have a few references from white to yellowish, and I look at them in 2 different lights: a cool-coloured light (white/~6500k) and a warm-coloured light (yellow/~3500k). Firstly, ...
29 views

### EEG Signal quality

I'm a EEG hobbyist using Olimex EEG SMT, and I'm using 4 dry, active electrodes to record EEG signals (the Olimex uses bipolar montage, so I actually have 2 channels). However, I cannot measure any ...
51 views

### What is “Predictive Reverse Engineering” and how can it be used for understanding brain structure?

Here is a quotation from the paper Markram et al., Introducing the Human Brain Project : New informatics and modeling approaches are making it possible to reverse engineer the detailed structure ...
51 views

### In what order do you preprocess EEG data?

I am fairly new to EEG research and I am unsure what the best ordering is for preprocessing data. Do you correct for baseline and filter the data before you go on with artifact rejection/correction, ...
67 views

### How many words are toddlers “making up”?

My 20-month old has learned many words to express herself. In addition she says many other words that are indecipherable from context nor pronunciation. It's most noticeable in novel or unusual ...
55 views

### Dependency EEG signals from regions of the brain

When we record an EEG signals, we apply an ICA on it. This algorithm assumes that the sources of signals are independent. Could I assume that each region in the brain works independently, i.e., the ...
37 views

### Literature with regards to facial attractiveness?

I would like to ask for suggestions of literature regarding the study of facial features, preferably in a context of how they may be considered attractive or not. To clarify, the goal is to try and ...
217 views

### Does the human visual system implement (adaptive) histogram equalization?

The human visual system is very good at 'cancelling out' shadows and other lightning effects, and focusing on the contrast in images. A famous example of this is Adelson's checker shadow illusion: ...
15 views

### Is there a correlation between mental disorders and mental rigidity?

When someone has a disturbed personality the resistance to change his ideas due to confirmation bias, Self-affirmation and self serving bias can make the work of the psychoterapeut hard. See Why are ...