Unit quiz: From synaptic integration to experience-dependent circuits

Check understanding, separately from reading

5 questions · 80% to pass · no timer. This quiz checks the lessons in this unit. These authored questions assess recognition and application of the taught distinctions, not professional qualification. You may review the lessons and retry. Repeat attempts reuse the question bank; a remembered answer is not proof of transfer to a new situation.

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Question 1

A cell fires when two dendritic pathways are stimulated together but not when the same stimuli are separated. What should the explanation emphasize?Overlap of graded responses at a relevant integration site.The separated stimuli must contain fewer action potentials.

Question 2

An input scarcely changes baseline voltage, yet makes a standard current pulse produce a smaller voltage deflection. Which property likely changed?The flat baseline proves all membrane properties were unchanged.Membrane conductance increased.

Question 3

An ON-center cell responds more to a small spot than to a uniform field with the same center intensity. Which comparison is most relevant?How much the stimuli recruit the antagonistic surround.Which stimulus delivers the largest total photon count irrespective of location.

Question 4

A position decoder fails when stimulus intensity changes outside its training range. What is the most defensible conclusion?The visual system cannot represent location under any conditions.Its demonstrated information extraction did not generalize to that intensity change.

Question 5

Following induction, a test pathway has larger EPSPs but an inactive control pathway is stable. Which property does that pattern support?Input-specific potentiation under the tested conditions.Global enhancement of every synapse on every recorded neuron.

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