8 votes
Accepted

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

Yawns are "contagious" in that other people (and even dogs) often yawn in response to seeing someone else yawn. The reason people yawn is unclear, but it is thought to have evolved to serve a ...
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  • 589
5 votes
Accepted

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

Introduction First of all, the study should not be trusted too much. Thirty six test subjects does not seem very much to me in order to make such a claim. However, &AtlLED's opinion in the ...
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  • 6,594
3 votes
Accepted

Can you change involuntary reactions?

Reflexes When it comes to physical reflexes, they are for the most part fixed. The link provided involves exploring a knee-reaction due to hitting the patellar tendon... "Okay, so I hit, and what ...
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  • 4,896
2 votes

How does the Jendrassik's manoeuvre reinforce reflexes?

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3502130/ Conclusion The findings from this study support the view that the mechanism for the JM is a reduction in presynaptic inhibition of alpha ...
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  • 13.2k
2 votes

Myasthenia Gravis and preserved deep tendon reflexes, why?

During your rotations you will notice that not every disease will show itself with the classic "Textbook" presentation (this actually very rare). Moreover MG can be considered a cluster of ...
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1 vote

Do humans have a loud sound avoidance reflex?

What you are describing sounds like a startle response. The startle response, along with the vestibular-occular reflex and acoustic reflex, and are often thought of as reflexes, despite not involving ...
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  • 1,442

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