The Preponderance of Evidence Suggests That in Extinction Trials

question 18

Multiple Choice

The preponderance of evidence suggests that in extinction trials,

• A)subjects learn inhibitory S-R associations.
• B)subjects learn excitatory R-O associations.
• C)subjects learn inhibitory CS-US associations.
• D)subjects learn excitatory S-S associations.

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Definitions:

Monocots

A group of flowering plants (angiosperms) characterized by having a single embryonic leaf, or cotyledon, in their seeds.

Eudicots

A major grouping of flowering plants characterized by having two seed leaves, or cotyledons, upon germination.

Pfr

Phytochrome Far-red form, a light-absorbing form of the phytochrome plant photoreceptor, significant in regulating plant development in response to light.

Nerve Cord

A major nervous system component in many animals, typically running along the length of the body and functioning as the central pathway for nerve impulses.