Questions tagged [sensory-perception]

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6
votes
1answer
90 views

Does synesthesia lack symmetry?

Some synesthetes report seeing bright flashes when hearing a loud noise. However, in the same person, bright flashes of light are not reported as being loud. I've read of other examples like this; ...
6
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1answer
339 views

In psychophysics, why are log luminance rather than absolute luminance values reported?

Are there any papers which justify converting into log luminance? For example papers showing humans being sensitive to changes in log luminance rather than luminance per se?
6
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1answer
117 views

Is inhibitory brain circuitry involved in cross-modal sensory perception?

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 ...
5
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2answers
829 views

Can binaural beats be generated with carrier tones outside the audible frequency range?

I know that binaural beats are a controversial subject, as they might not work for everyone. In my own tests on myself I shuffled multiple recordings of binaural beats, with stereo headphones on, not ...
5
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0answers
198 views

How are tactile pleasure and pain differentiated in the somatosensory cortex?

A recent question here asked about (mostly) how pain and pleasure are differentiated in pathways involving reward/aversion cues. But there was some confusion as to what the question really wanted to ...
4
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1answer
115 views

How can someone asleep recognize a very brief sound?

I have a snoring girlfriend. To interrupt her snoring, I make a sound similar to the very brief sound gas makes when opening a soda can or bottle (had a snoring brother, I know this technique works ...
4
votes
1answer
360 views

Is there a difference between physiological stimulations and psychological stimulations?

From what I understand, physiological stimulation (or stimulus or sensation) "refers to sensory excitation, the action of various agents or forms of energy (stimuli) on receptors that generate ...
4
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1answer
3k views

Difference between thoughts and sensations

I am interested to know how to distinguish sensations from thoughts, according to the techniques and concepts of neuroscience and psychology. Is there an explicit distinction between them, or are ...
4
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1answer
161 views

Is there knowledge of the receptive field patterns of cortical columns in associative brain regions?

The retinotopic, area-based connectivity patterns of the columnar receptive fields in the visual cortex are well-established. Do any mappings of the columnar receptive field connectivity patterns ...
4
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1answer
26 views

Multistable perception with three possibilities

I know that multistable perception refers to the phenomenon that occurs when we look at an ambiguous image like a Necker Cube or some sort of positive/negative space art, and we can’t perceive both ...
4
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1answer
2k views

What causes the sensation of taste when Dimethyl Sulfoxide (DMSO) is absorbed through the skin?

The Wikipedia page for DMSO says: The perceived garlic taste upon skin contact with DMSO may be due to nonolfactory activation of TRPA1 receptors in trigeminal ganglia ...and references a PLOS1 ...
4
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0answers
100 views

How do patients with an amputated limb experience and report their phantom perceptions?

[I changed "sensations" to "perceptions", due to @AliceD's comments here.] Suppose a patient with an amputated limb experiences and reports some phantom perception at the limb: the limb just being ...
3
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3answers
57 views

Synchronization of perception of sensory information

I am not an expert (actually I am not even psychologist/neuroscientist or anything like it).My question is: Since light and sound comes to, respectively, our eyes and ears at different times and "...
3
votes
2answers
197 views

for a persistent perceptual experience, why is video able to have a lower frame rate than audio?

In film, images are typically shown to us at around 24 frames per second, but modern sound files will often have 44100 or 48000 samples per second. There's a threshold above ~12 fps where we will ...
3
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1answer
2k views

Difference between active and passive touch?

I am considering the role of whiskers in the development of the mouse brain, and came across the following: 'we found that the signals sent to the brain by the whiskers during active touch differ from ...
3
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1answer
56 views

How quick a flash of light is invisible

I know this overlaps a lot of previously asked questions but: I understand that 'A photon hits a photosensitive molecule in a photoreceptor in the retina, which causes a chemical change. [...] Vision ...
3
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0answers
125 views

Filter of perception

I read a book about sensory perception in ASD from Olga Bogdashina(Sensory Perceptual Issues in Autism and Asperger Syndrome, Second Edition). She reffer to some kind of filter in sensory inputs, but ...
3
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0answers
56 views

Tactile perception of printed advertising materials and brand image

Does texture of paper (e.g.matt or glossy) of printed advertising materials affect the perception of brand image? From what I've researched so far (http://entermotion.com/blog/2014/01/this-...
2
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1answer
83 views

If light travels at c, and the human nervous system's speed/perception speed<c, why aren't we not seeing or blind at some times?

If light travels at c, and the human nervous system is a lot slower than light speed, therefore it would take a lot of time for us to process what we see, why aren't we blind to what's going around us ...
2
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2answers
84 views

How are positions and counts of higher concepts encoded in sparse representations?

I understand that levels in the sensorimotor hierarchy of the brain learn recurring features of their input streams. The results are activation patterns with single neurons firing for the existence of ...
2
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1answer
75 views

Does the retina contribute in distinguishing lines and borders?

I think there is a phenomenon behind the way which our eyes judge between lines of contrast, like black lines on a white page, by just recognizing the contrast areas at the level of the rods and cones....
2
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1answer
200 views

What are the definitions of 'multi-channel coding' and 'opponent channel coding'?

I am looking for the definitions of Multi-channel coding Opponent-channel coding And specifically in the context of visual adaptation. I have searched for information on the web and in books, but ...
2
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0answers
20 views

Has there been any neuroscientific study of polydactyly?

I have been reading about polydactyly and found that surgery is only necessary in certain cases. It depends on way the extra digit on the hand or foot is attached. For example, central polydactyly (...
1
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0answers
38 views

How a living being (a huge collection of atoms) perceive things? [duplicate]

How a series of physical and chemical events leads to a very non physical/ intangible perception? For example, let's say a certain wavelength of light falls on the retina of my eyes, then the sensory ...
1
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0answers
28 views

What is the “perceptually correct” range or map of negative (inverted) colors?

When using software to invert the colors of a picture or screen, the software just blindly (literally) uses a mathematical formula to calculate the inverted color of each pixel. For example, in RGB, ...
1
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0answers
23 views

is low pitched machine synthesized speech easier to comprehend at high rates?

all I have is anecdotal experience, try it out yourself. I couldn't find any published study, was anything published about that?
1
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0answers
38 views

Why is it hard to not read some text

I have observed this and felt very uncontrollable. Whenever I see some text (in a language that I know) I start reading automatically. I don't see them as some curves... With intense focus I could ...
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0answers
641 views

What makes you like someone? [closed]

Everyone has some friends and some people, you can't get along with. But what makes them different? Is it smell, the voice, attractiveness, the way they express themselves, their sence of humor? I ...
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0answers
39 views

Model of human estimation of correlation tasks

I am looking for a model (bayesian or not) on how people would estimate the correlation between two variables from a given scatter plot. Any one knows of such model?
0
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0answers
13 views

What is some proofreading meme that shows we cannot detect the double words?

I had once seen a meme about proofreading that clearly demonstrates our brain cannot detect the double words and it also took several times of reading to realize it. I wonder if someone having that ...
0
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0answers
6 views

Research on using kinesthetic sense to guide cognitive visual model?

Has there been any research on how our sense of where our limbs are relatively to our body informs our spatial reasoning? For example, I think people might be more successful at hitting a nail with a ...
0
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0answers
18 views

Is there a difference in taste buds on the tongue between children and hsp's?

Children often don't like tastes like bitter and sour. Vegetables like Broccoli or sprouts aren't food they like to eat. But high sensitive people (hsp) also often like these kind of food. But is the ...
0
votes
1answer
86 views

How does a brain without sensory inputs function?

If for some reasons a brain would be deprived off all inputs, it (he/she) would still have memories to process and all thoughts would be based on past experiences. But in case a person was born ...
0
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0answers
17 views

Is it possible to be entirely impartial?

I am writing a paper for my English class about flaws in the justice system. One of the biggest problems I believe exists is the humans' natural instinct to judge people before we even know them. Is ...