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Questions tagged [sensation]

Questions about the ways that our bodies processes incoming visual, auditory, gustatory, somatosensory, proprioceptive, and pain (among others) information

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Are there any cases of a person with misophonia for which the condition has been passed on to their child?

genetics increase one's risk of PTSD, as well PTSD can be developed through vicarious trauma. Misophonia condition appears to have the following in common with PTSD; Anger , muscle tension, feeling ...
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1answer
61 views

Is Paul's Churchland claim about qualia supported by science?

Knowledge argument: Mary is a brilliant scientist who is, for whatever reason, forced to investigate the world from a black and white room via a black and white television monitor. She specializes ...
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1answer
172 views

Is there any neuroscience research on the emotion of feeling nothing?

When people entering anechoic chambers, logically there is a sensation of silence because relatively speaking, the sound levels are much lower compared to some normal baseline Likewise, when there is ...
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1answer
383 views

Is “haptodysphoria” an urban legend or is there another term under which this studied?

I was googling for something like why some people don't like to touch velvet, and the top hit was https://en.wiktionary.org/wiki/haptodysphoria where it's defined as An odd, disagreeable sensation ...
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100 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 ...
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1answer
75 views

Synesthesia hearing to see

Can a synesthetic person, also known as a synaesthete, see sounds even when that person is actually blind? If so how does the brain interpret a picture without a vision?
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1answer
82 views

Does the perception of odors change over time?

Is it normal for the perception of odors to change over time? I mean the same odors, like the smell of a snack with the same formula as before.
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1answer
83 views

What is the frequency range of electrotactile stimulation?

I have been trying to find out what the (human) electrotactile frequency range is. Since this is a much more experimental method (and more unpleasant) than the traditional vibrotactile method, the ...
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1answer
122 views

Is V1 involved in visual imagery?

It's well known that mental imagery shares the neural substrates of its respective modality, despite dissociable multivariate patterns. For example, visual imagery can be decoded across the ventral ...
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2answers
90 views

What are the temporal limits of the auditory system?

I would like to know what the time scale is of the human ear. I mean, what is the shortest duration of a sound that a human ear can notice and what is the longest duration of a sound that a human ear ...
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1answer
91 views

What is the cause of differences that are too small to see?

Consider two identical pieces of paper. Scenario 1: On both something is drawn in black ink. If the difference between the areas covered in black ink is sufficiently small, I cannot see the ...
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0answers
37 views

Does the wrist have more neurons than the finger? [closed]

Once upon a time, I felt an ant crawling on my hand. I couldn't feel it initially, until it reached my wrist. Then I tried to let the ant crawl on my skin; what I found was that I couldn't feel the ...
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1answer
50 views

Does increased neural complexity slows down brain operation speeds?

If a sensory input is perceived, one needs to process this input from the sensory end organ (sensation) up to the brain (perception). Does a more more complex neural network consume more time than a ...
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1answer
430 views

What explains the characteristics of the receptive fields of simple cells in V1?

Here is a YouTube video of a Hubel & Wiesel experiment from 1965 in the visual cortex. The video shows the experimenters outlining the receptive field of a simple cell in the first part of the ...
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1answer
179 views

Do people with birth defects feel phantom limbs?

The phenomenon of phantom limbs in people who have lost arms or legs to amputation is pretty well-established. It makes a fair amount of sense. The "brain mapping" of the limb (and for that matter the ...
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1answer
54 views

Is our sense of smell heightened when we are asleep?

My question is whether our sense of smell is stronger when we sleep? From an evolutionary perspective this could have been beneficial in terms of runaway camp fires, marauding saber tooth tigers or ...
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1answer
149 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 ...
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1answer
342 views

How does the brain project pain on to a particular part of the body?

How does our brain translate periheral sensations due to injuries into pain perceptions? As an in silico analogy - if a stimulus is applied to a sensor it can be transmitted to a microprocessor. The ...
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88 views

Difference in hemispheres when processing of somatosensory information

We know from many studies (see e.g. Taylor, 2009 for an empirical and experiential overview) that processing of information is massively heterogeneous with respect to hemisphere. How does this ...
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1answer
2k views

How does the inner ear encode sound intensity?

Different areas of the inner ear (the cochlea) are sensitive to different acoustic frequencies. Hence, the cochlea basically performs a fast Fourier transform on the audio signal. This spectral ...
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2answers
149 views

Do we perceive contrast colour patterns easily because of adaptation?

I can understand that colours are just manipulation of our brain to light rays of different wavelength and energy. We perceive patterns better at higher contrast. Do we perceive patterns better at ...
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1answer
1k views

If the color black reflects no light, how are we able to see it?

If color as we perceive it is dependent on the wave lengths that are reflected by an object, with white reflecting all hues and black absorbing all, how do we detect a black object? I do understand ...
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1answer
2k 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 ...
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1answer
541 views

Is it possible that people perceive time differently than others do?

All of my life I have been told to be more patient, to stop "racing through life", etc. Happily, I am finally mature enough to accept that as solid advice, but I am curious as to whether it is ...
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1answer
270 views

Is touch sensitivity higher for females?

I read a long time ago that in a study of two-week old infants response to touch, the female babies were far and away more sensitive. In most gender comparisons, there are the familiar "two humps" in ...
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1answer
136 views

Increasing pitch perception of the same auditory stimuli

I was trying to work up a small clip of repeating beep sounds I recorded from a mobile game. This series of sounds, when played, gave an unmistakable perception of increasing pitch with every ...
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2answers
163 views

Any ideas about the neural mechanism underlying the ASMR sensation?

Autonomous Sensory Meridian Response (ASMR) is described as a pleasurable, tingly sensation in the (back of the) head. The sensation can be triggered by a vast variety of stimuli (auditory, visual, ...
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1answer
1k 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 ...
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1answer
65 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....
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2answers
128 views

Is there a standard definition of a “hallucination”?

As far as I understand, there is a compelling sense of reality to sensory hallucinations. Do hallucinations (as, e.g. in the DSM) substitute for the sense and experience of a real reality? For ...
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2answers
144 views

Can people with absolute pitch identify the exact frequency, or simply the pitch class?

Absolute pitch can be defined as the ability to identify or re-create a given musical note without the benefit of a reference tone. When people claim to have absolute pitch, does this mean they have ...
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1answer
89 views

How long does it take to learn to cane travel?

How long does it take the average person (either sighted or blind) to learn to use the guide cane successfully for mobility purposes? Source: Lions. Because required training times will depend on ...
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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 ...
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1answer
412 views

Does sensory deprivation affect cognitive abilities?

I am wondering if the loss of vision or hearing early in life (say, before the age of 14 years) affects cognitive abilities later in life? I would imagine that as a group, early-blind or early-deaf ...
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1answer
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How did Fechner justify the assumption that the just-noticeable-difference in sensation is constant?

As stated here on Wikipedia: 1 Weber's law states that the-just-noticeable-difference (JND) of an intensity of a stimuli divided by the intensity of that stimuli is always constant. Mathematically: ...
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1k views

Why is sensory substitution not that successful?

By successful, I mean made it out to the large world market or being massively funded. After looking online it seems that the most relevant research is the one done by Bach-y-Rita about the seeing ...
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2answers
613 views

Long term effect of using noise generators

Some people use noise generators as http://playnoise.com/ to reduce distraction by background noise. Is there any research on the long term effects of this? Does this affect the neuronal connections ...
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1answer
130 views

Studies on visually recognizable personality traits?

Are there any studies on the possibility of visually recognizing someone's personality? When I say "visually recognizing" I mean things like clothes, accessories, body attitude, visible behavior, ...
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2answers
106 views

aftereffects of auditory adaptation

Adaptation is a very robust feature of sensory processing: when a stimulus is displayed for a prolonged period, or repeatedly, the neural response to it will diminish. This process creates a local ...
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108 views

Why is bubble wrap so fun? [closed]

Popping bubble wrap can be a lot of fun and is said to relieve stress. How does it have these effects? Is it to do with the popping sound, or the physicality? How effective are substitutes such as ...
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1answer
2k views

What is a sweet pain, exactly?

Why some pains are sweet? Some pains give pleasure not even bodily pains but mentally also in daily affairs, an individual may intentionally impose mild difficulties on his self. Is there a cognitive ...
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1answer
72 views

Is there any research showing success of teaching with smell?

Cognitive science holds that smell is the sense that has the strongest ability to trigger memories. It is discussed in awe. We see anecdotes such as the sudden striking memory of sitting in your ...
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4answers
876 views

Why does your recorded or objective voice sound different to what you hear in your own head?

When speaking, I hear my own voice very differently from how others do and from what it really is. The sound differs in tone, pitch, volume, etc. For example, recordings of my singing or speaking in ...
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2answers
1k views

Is there some hierarchy of the human senses?

What I mean by this is to ask if each of the sensory inputs can be quantified by the amount of information the brain is receiving: For example, Brain says: currently receiving 10 packets of visual ...
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3answers
2k views

Are colors real?

We know that we distinguish colors when they fall on our photo receptors in our eyes and neurons pass its signals to our brain to recognise them as the specific colors. How accurate is it? For ...
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1answer
443 views

Sensory dissonance: Will the visual or auditory channel win?

Is there any research showing that our visual channel takes precedence over the auditory channel (or vice versa) if there is some dissonance between them? Examples: Say a person driving a car ...
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3answers
3k views

Why do one's surroundings still seem to rotate when you stop whirling around?

When you spin your head around in circles, the world appears to continue to spin. Why do one's surroundings still seem to rotate when you stop whirling around in a circle? What is happening in the ...
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90 views

What are the neurobiological mechanisms behind clumsiness [closed]

Some people are inherently clumsy (including your's truly). Everything from frequently stubbing their toes to, as in my case 2 days ago, falling down a single step and managing to crack a rib and ...
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2answers
302 views

What is the reward mechanism for eating spicy foods?

I can eat pure sugar and pure fats and find it pleasurable thanks to the taste receptors; and salt to a lesser extent. But pure raw chilli products trigger irritation to the tongue, cheeks and nasal ...
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4answers
3k views

Why is the sound of fingernails on a chalkboard so intolerable?

I am curious as to what current research shows regarding why scraping noises such as fingernails on a chalkboard, a knife/fork scraping against a plate, metal grinding against metal or stone etc are ...