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

Pneumonia, P n e u mo n i a It is inflammation of pulmonary pare...

P n e u mo n i a It is inflammation of pulmonary parenchyma, usually accompanied by inflammation of bronchioles, and is characterized by cough, increased respiratory rat

How is the circulatory system of birds characterized, Q How is the circulat...

Q How is the circulatory system of birds characterized? Like every vertebrate, Birds, have a closed circulatory system. The heart is similar to the mammalian heart, having four

Explain about metabolic diseases, Q. Explain about Metabolic diseases? ...

Q. Explain about Metabolic diseases? Metabolic diseases, as you already know, refer to those disorders in which the various reactions in the cells are effected (production of e

What are contraction of sarcomeres of the muscle cells, Q. What are the few...

Q. What are the few examples of movement created by the contraction of sarcomeres of the muscle cells? The handling of a cup of coffee, the peristaltic movements of the bowels,

What is atom, What is atom? Atoms are the smallest component of matter ...

What is atom? Atoms are the smallest component of matter that determine its unique chemical and physical properties. They are composed of negatively charged electrons, positive

Regeneration - root and shoot morphogenesis, Regeneration - Root and Shoot ...

Regeneration - Root and Shoot Morphogenesis Higher plants have three kinds of regenerative activities; All plants possess inherent ability to regenerate lost parts. Fo

The statement is true or false, Anton van Leeuwenhoek was the first to prop...

Anton van Leeuwenhoek was the first to propose placing microorganisms into the Kingdom Monera. True or False

Countercurrent flow, Countercurrent flow is the arrangement by which fish ...

Countercurrent flow is the arrangement by which fish get oxygen from the water which flows by the help of their gills. The water flows across the respiratory surface of the gill i

Physiological adaptation of parasites for infectioness, physiological adapt...

physiological adaptation of parasites for infectiousness?

Define general nutritional functions of minerals, Define General Nutritiona...

Define General Nutritional Functions of Minerals? We hear and talk about minerals almost everyday with regards to maintaining good health. But what are minerals and what functi

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