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Questions tagged [senses]

The physiological mechanisms by which organisms perceive their environment.

17 questions with no upvoted or accepted answers
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129 views

Cold water sour taste

Recently I underwent a wisdom tooth extraction, and while there is still numbness I have observed something peculiar. If I drink cold water, it tastes sour, however the same effect is not observed ...
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188 views

Empty room, Room full with stuffs & Auditory adaptation to reflection of sounds

Background When a room is full with stuffs like furniture, electronic utilities, books etc. it's hard to hear reflections of sounds made by us (talking, playing an instrument, sound from falling ...
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26 views

Efficacy of sonic kangaroo deterrents

Bender (2003) tested the efficacy of sonic kangaroo deterrents. Their device is static (and apparently ineffective). Has there been any rigorous testing of the whistle-like 'kangaroo deterrent' ...
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34 views

Is perception contrast based?

If I understand it correctly, humans can discriminate shades and colours based on their inherent contrast, as in we can see colors because there are different colors. Same for shades and for acoustic ...
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149 views

Can LSD in very small amounts increase mental ability?

Can one take a small amount of LSD(acid) and not trip but still benefit from the intended purpose? It was said the military invented it for extra sensory abilities. It has also been said it could ...
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535 views

Is there a meaningful difference between direct and indirect light

I don't see a basis for a distinction, but I've heard several people distinguish between direct and indirect light for people, claiming that indirect light would be better in many cases. "Direct" ...
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48 views

How does kinesthetic work and with what do we sense this?

I know that kinesthetic and proprioception are different things but, in contrast to proprioception, I don't know how kinesthetic works. A broad explaination as well as very specific(but explained ...
2
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383 views

External sensory stimuli that awaken a person from sleep

An external sound or touch can awaken someone. Can a light? It would have to be very strong, but part of the reason might be that it would have to penetrate the eyelids. And can a smell or taste? ...
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263 views

Why bipolar neurons in retina transfer information via graded potentials?

Why should bipolar cells prefer graded potentials to action potentials? My attempt: I know that graded potentials are better in processing information since stimulus is directly proportional to ...
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244 views

Are Sharks able to detect electromagnetic waves using their Electroreception ability?

I will include some publications and links that may help. I could not concluded an answer with my limited knowledge on the subject. Shark Passive electroreception sensitive to low frequency (below 50 ...
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234 views

Why are interneurons needed in the spinal cord for polysynaptic reflexes and somatosensory tracts to the brain?

The single explanation I found for the polysynaptic reflex is that the interneuron diverges into more pathways, such as the efferent motor neuron, the inhibitory neuron to the opposite extensor muscle,...
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2k views

Pitch shift in hearing after wisdom teeth removal

Yesterday I had my wisdom teeth removed. This morning, when I heard our phone ringing, it sounded a little lower-pitched than usual (I have perfect pitch). Sure enough, when I opened FL Studio (music-...
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511 views

Factors for sensitivity to electric shock

I'm frequently getting electric shocks in my office when touching things. I basically know why this happens and how to avoid it. Still I started to wonder what would be the best way to touch ...
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21 views

taste and hunger

Is it true than when you are hungry and you start to eat anything the flavour you like is increased? I like eating sweets.I havent eaten for 1 day.I am hungry.Whatever I eat now will seem to be ...
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11 views

Which other sense organs aside of eyes/ocelli do Tardigrades have?

Tardigrades have eyes/ocelli as sense organs. How about the other senses? Do they have some organ for hearing? Do they have some organ for smelling or tasting?
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35 views

Can creatures that can see color in completely different visible spectrum exists?

From wikipedia - "The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye." So humans can see the light from 400-700 nm and this is because our eyes can ...
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93 views

Is there a lower temperature limit, below which we cannot sense a difference in temperature?

At work I have to handle samples stored at -20 and -70 degrees Celsius, and they don't feel that different to me.