Helena Is Doing a Science Experiment with Her Friends

question 25

Multiple Choice

Helena is doing a science experiment with her friends.She is sure people can recognize smells, so she gives them a series of items to smell and identify, but to her dismay, they are barely able to label any of them properly.Then she gives them a list of choices for each smell.What kind of results should she expect to see this time?

• A)an insignificant difference in the number of correctly identified smells
• B)a substantial increase in the number of correctly identified smells
• C)a minimal increase in the number of correctly identified smells
• D)a moderate decrease in the number of correctly identified smells

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Definitions:

Prefrontal Cortex

refers to the front part of the frontal lobe of the brain, which is involved in complex cognitive behavior, personality expression, decision making, and moderating social behavior.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions (such as fear and pleasure) and drives (such as those for food and sex).

Motor Cortex

A brain region responsible for the planning, control, and execution of voluntary movements.

Circadian Rhythm

Refers to the natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.