Questions tagged [reflex-impulse]

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What is a pain response when the feeling of pain isn't there?

Is there a term and definition for when the body reacts to pain you can't consciously feel? To be more descriptive, it's a reflex to pain, like pulling back from a hot stove and coddling the finger ...
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1answer
47 views

Do humans have a loud sound avoidance reflex?

I accidentally played music wearing earphones at top volume, and felt maybe half a second of pain before I seemingly involuntarily swatted the earphones to the ground. I don't remember even having ...
6
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1answer
186 views

Are all Infants' Aquatic Instincts lost after 7ish months? Can they be maintained if skills are utilized often?

Babies have extraordinary instincts upon their arrival just into this world. It just happens naturally. One of these is of the swimming variety as witnessed in this video Underwater Baby Divers. Who ...
2
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1answer
551 views

Why does the scrotal sac contract when preparing to defecate?

I've done some research and I figured out that the two muscles of the scrotal sac, the dartos and cremaster muscles contracts involuntarily when it is cold to move the testes closer to the heat of the ...
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0answers
22 views

Why do I always sneeze and get watery eyes when I pluck my eyebrows? Is it a reflex/trigger? Nerves linked?

Why do I always sneeze and get watery-eyes when I pluck my eyebrows? Is it a reflex? Are the nerves around our eyebrows linked to our nasal cavity?
2
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1answer
594 views

Are yawns and hiccups pscyhosomatically contagious or are they just reflexes/impulses?

Are yawns and hiccups pscyhosomatically contagious or are they just independent reflexes? I've always been told growing up, "yawns are contagious" or "you gave your hiccups to me." Is there any truth ...
7
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1answer
1k views

How does the Jendrassik's manoeuvre reinforce reflexes?

According to Wikipedia, The Jendrassik maneuver is a medical maneuver wherein the patient clenches the teeth, flexes both sets of fingers into a hook-like form and interlocks those sets of fingers ...
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0answers
917 views

How Consistently Does Alcohol Affect Reaction Times?

I've always been told that alcohol will reduce reaction times. There are lots of sources for this online. For example: https://www.sciencedaily.com/releases/2010/10/101019162149.htm http://www....
5
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1answer
122 views

Can you change involuntary reactions?

When involuntary reacting in a situation such as a car crash or even a burn, people have recalled that they didn't think in the situation, just acted. I, personally, have pretty good reactions and ...
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0answers
695 views

What causes incessant scrotal sac movements?

According to Wikipedia, scrotal sac movements are to serve the purpose of regulating the temperature of the testicles. They are at slightly lower temperature than the human body, so the scrotal sac ...