A Graded Sequence of Approximations to a Feared Stimulus Is

question 15

Multiple Choice

A graded sequence of approximations to a feared stimulus is called

• A) a classical situation.
• B) systematic desensitization.
• C) a stimulus hierarchy.
• D) imagery.

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Definitions:

Depolarizing Currents

Electrical currents that reduce the membrane potential of neurons, making the inside less negative and closer to the threshold for firing an action potential.

Action Potentials

short-lasting events in which the electrical membrane potential of a cell rapidly rises and falls, allowing neurons to transmit signals.

Synaptic Gaps

The small spaces between neurons across which neurotransmitters travel to transmit signals from one neuron to another.

Neurotransmitters

Chemicals released by one neuron (usually the presynaptic neuron), which trigger a response in another neuron (usually the postsynaptic neuron); the chief means of communication among neurons.