Question

(Ch 10.1; General Sensation) In the somatosensory system for a region that has small receptive fields and a relatively low amount of convergence

Group of answer choices

a. there will be relatively few neurons per unit area of the skin

b. there will be a relatively large amount of lateral inhibition

c. none of the answers

d. two-point discrimination would be worse than in an area with large receptive fields and a lot of convergence

e. there will be high acuity (resolution)

Just need the answer don't explain

(Ch 10.2; Somatic Senses) The duration of a sensory stimulus is represented by

Group of answer choices

a. the frequency of action potentials in a phasic neuron.

b. the duration of a series of action potentials in phasic neurons.

c. the size of the action potentials in both tonic and phasic neurons.

d. the duration of a series of action potentials in tonic neurons.

e. the frequency of action potentials in a tonic neuron.

(Ch 10.1; General Sensation) Sensory neurons A, B, C, D and E each have the same receptive field size. Their receptive fields partially overlap. The five neurons converge onto neuron Q. The receptive field of Q will __________ the receptive field of neuron C.

Group of answer choices

a. be the same size as

b. have more lateral inhibition than

c. be smaller than

d. be larger than

Answer 1

Ch10.1) correct option is e

When the receptive field is smaller it's acuity will be more.

Ch10.2) correct option is d

The duration of sensory stimuli is represented by the duration of series of action potential in Tonic neurons, this is beacuse the tonic receptors are the one which respond to the sensory stimuli slowly an dproduce the action potential over a duration.