Chapter 13 Self-test questions

. Anterograde amnesia is defined as a deficit in long-term memory in reference to events that occurred after the trauma or disease that caused the condition.

True

False

. Which of the following statements about explicit memory is not correct?

It is also called declarative of episodic memory.

In humans, it refers to memories that are consciously recalled.

It does require an intact temporal lobe of the cerebral cortex, including the hippocampus.

In contrast to implicit memory, only a long-term form of information storage exists in explicit memory.

. In Aplysia, the neurons of the neural circuit underlying the gill-withdrawal reflex have been identified. Which of the following neuronal types mediates sensitization?

Sensory neurons.

Motoneurons.

Serotonergic neurons.

Inhibitory interneurons.

. Cyclic AMP-dependent protein kinase plays an important role in the molecular signaling in short- and long-term sensitization of the gill-withdrawal reflex in Aplysia. Which of the following actions is not performed by this kinase?

Conversion of ATP to the second messenger cyclic AMP.

Phosphorylation of specific K⁺ channels.

Mobilization of synaptic vesicles.

Translocation into the nucleus to activate transcriptional processes.

. Which statements about place cells are correct? Please select all that apply.

Place cells are a subpopulation of pyramidal cells of the hippocampus.

The firing rates of place cells are modulated by spatial location of the animal.

Each place cell encodes only one place field.

The place fields of different place cells collectively form an internal representation of space, a so-called spatial map.

. Studies in mice have shown that in the dentate gyrus of the hippocampus new neurons are generated continuously during adulthood. Which of the following features is not exhibited by these adult-born neurons?

They can incorporate the thymidine analogue 5-bromo-2'-deoxyuridine during the S phase of mitosis.

They are generated at higher rates in mice living in an enriched environment, compared to mice kept under standard housing conditions.

Their survival is improved in mice living in an enriched environment, compared to mice kept under standard housing conditions.

They develop into functional granule cell neurons of the dentate gyrus.

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