Are Sensory Adaptation and Electrophysiology Clear Concepts?

[jnimagine]

Whole-cell patch clamp electrophysiology can be used to record:
a) the activity of the ion channels that are present in the patch of membrane
b) the activity of multiple neurons at a given time
c) voltage and/or current across the membrane of a cell
d) multi-unit activity

My guess: c.

Sensory adaptation:
a) only occurs at phasic receptors
b) only occurs at tonic receptors
c) is due to a change in the quantitative way that a receptor encodes stimuli
d) is independent of receptors

My guess: c.
for this question... is it fair to say that adaptation only happens in phasic receptors? for tonic receptors, there is continuous response... but there is still some adaptation later on...? I'm quite confused about this question...

Please help with these two questions!

Thank you~

 

[Nino MMP]

For the first question, the correct answer is c. Voltage and/or current across the membrane of a cell. For the second question, the correct answer is c. It is due to a change in the quantitative way that a receptor encodes stimuli. Adaptation can occur in both phasic and tonic receptors, but it is typically more pronounced in phasic receptors.