Baby Max Watches His Mother Jingle Her Keys in Front

question 23

Multiple Choice

Baby Max watches his mother jingle her keys in front of him. After several minutes, he looks away, no longer interested. This would indicate that he has habituated as he is showing a(n) _____ to a stimulus after repeated presentations of the stimulus.

• A) decreased responsiveness
• B) increased familiarity
• C) increased interest
• D) decreased anxiety

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Definitions:

Adenylyl Cyclase

An enzyme that converts ATP to cyclic AMP (cAMP) in the cell's signaling pathways.

cAMP

Cyclic Adenosine Monophosphate, a second messenger important in many biological processes, including the regulation of metabolism.

Protein Kinase C

An enzyme that modifies other proteins through the chemical addition of phosphate groups, playing a key role in several signal transduction pathways.

DAG

Diacylglycerol, a type of molecule that functions as a secondary messenger in the transmission of cellular signals.