A Rat's Performance on the Morris Water Maze, a Test

question 2

Multiple Choice

A rat's performance on the Morris water maze, a test of spatial ability and memory, will be affected in what way by a lesion to the amygdala?

• A)The rat will be impaired in learning all aspects of the water maze.
• B)The rat will not be impaired in a basic water maze task, but it will fail to show the stronger retention that would otherwise be expected if the task includes a physical stressor.
• C)The rat will be impaired in the basic aspects of the water maze task, but it will still show an improvement in retention if the task includes a physical stressor.
• D)The rat will be unimpaired in learning the water maze task because the amygdala is important only for the expression of previously learned conditioned responses.

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Definitions:

Glycogen

A form of carbohydrate stored in the liver and muscles, used as a primary energy source during physical activity.

Liver

The liver is a vital organ responsible for detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

Morbidly Obese

A condition characterized by an individual having a Body Mass Index (BMI) of 40 or higher, which significantly increases the risk of health problems.

BMI

A calculation known as Body Mass Index evaluates body fat by considering an individual's height and weight, and is used for both adult males and females.