The Mechanism by Which a Crayfish Decides Whether to Approach

question 28

Multiple Choice

The mechanism by which a crayfish decides whether to approach or withdraw from illumination appears to be

• A) Mutual inhibition of sustaining neurons.
• B) Complex interconnections in the visual cortex.
• C) Whether or not sustaining neurons are activated.
• D) Motor neurons that propel the legs either forward or backward.
• E) a switch neuron in the caudal ganglion.

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Definitions:

Personal Distress

A negative emotional response to a stressful situation, which is personal and subjective in nature.

Medical Model

A framework that views abnormalities or illnesses primarily as the result of biological factors and which should be treated through medical intervention.

Prognosis

A forecast or prediction about the likely outcome or course of a disease based on the individual’s condition and medical knowledge.

Adaptive Functioning

A person's ability to manage common demands of life and meet the standards expected for their age and cultural group, including social and practical skills.