Show coding for stimulus intensity, Biology

Assignment Help:

Q. Show Coding for stimulus intensity?

Coding for stimulus intensity: If AP's are all-or-none responses that do not vary in amplitude, how does the NS distinguish between stimuli intensity? (whisper vs. loud noise!).

The size of the receptor potential (generator potential) will affect the frequency at which the neuron fires AP's along the axon:

424_Coding for stimulus intensity.png

Note: Hence a loud noise is distinguished from a soft whisper mainly by the rate at which the nerve fires AP's. Eventually, a maximum rate is reached as nerve cell membranes are REFRACTORY (cannot respond to a stimulus immediately after the previous one).

386_Coding for stimulus intensity1.png

Also, sensory receptors usually ADAPT to sustained stimuli by decreasing their frequency at which AP's are fired:


Related Discussions:- Show coding for stimulus intensity

Operative requirements for stage i surgery, Operative requirements for stag...

Operative requirements for stage i surgery Although Implant placement under general anesthesia must be done in an operating theatre with complete resources, most implant surger

What do you mean by zoonoses, Q. What are zoonoses? What are few examples o...

Q. What are zoonoses? What are few examples of zoonoses transmitted by birds? Zoonoses are human diseases transmitted by animals. Psittacosis, a bacterial disease, cryptococcos

What do you understand by exoskeleton, What do you understand by Exoskeleto...

What do you understand by Exoskeleton. Supporting structures of skeleton not surrounded by the body. Endoskeletal elements are secreted by an underlying epidermis and one side

Types of hypertension, Types of hypertension are as follows: Essential ...

Types of hypertension are as follows: Essential Hypertension is called essential when no apparent cause is suspected or detected. This accounts for almost 90 per cent of pati

Explain about anterior superior alveolar nerve, Anterior superior alveolar ...

Anterior superior alveolar nerve It is a branch of infraorbital nerve which arises within the infraorbital canal. It gives a nasal branch which passes into nasal cavity to supp

Proteins of animal origin - shell fish, Proteins of Animal Origin - Shell F...

Proteins of Animal Origin - Shell Fish Shell Fish: Information on shellfish is fragmentary and incomplete. In shell fish, the shell comprises of a large portion of live weight

Viral diseases - avian encephalomyelitis, V i ra l Diseases A v ...

V i ra l Diseases A v ian encephalomyelitis This is enterovirus disease of chicken, pheasants, turkeys and Japanese quails caused by the member of the family Pi

What is schistosomiasis, Q. What is schistosomiasis? The Schistosomiasi...

Q. What is schistosomiasis? The Schistosomiasis is a worm infection caused by schistosomes, a species of flatworms (platyhelminthes). The disease is common in Latin America and

Conjugated proteins, CONJUG A TE D PROTEINS Besides being made of po...

CONJUG A TE D PROTEINS Besides being made of polypeptides, the conjugated proteins posses additional groups, metals or ions. Consists of protein and non-protein parts.

Amoebas, two types of amoebas waste and how they get rid of them

two types of amoebas waste and how they get rid of them

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd