Physiology Question:
Download Questions PDF

Explain How do you know which ganglion cells activities increase or decrease at the edge? On the web one ganglion cell increasing activity at the edge and one decreases, but how can you tell?

Answer:

The receptive fields of two on center ganglion cells are shown. In the previous diagram we saw that if all the receptive field were in the light or the dark there is little change in activity. This is because only the only part in the light is part of the inhibitory surround. The one on the top increases its activity. This is because only the only part not in the light is part of the inhibitory surround. Thus there is less inhibition of this cell.

Download Physiology Interview Questions And Answers PDF

Previous QuestionNext Question
Explain Does the length of the line change firing rates for simple and complex cells or does firing only change with orientation of the cells?Explain When we do liquid extraction, what is the effect of adding 10%acid or any base and how do we know which has to be added and up to which concentration or micro liter level can we add such buffers? If any gel formation occurs at the time of extraction, how will it affect the analysis? Shall we continue the extraction with the same or should we drop that method?