Neural Transmission Across a Mammalian Synapse Is Accomplished by ________

question 41

Multiple Choice

Neural transmission across a mammalian synapse is accomplished by ________.

• A) the movement of sodium and potassium ions from the presynaptic neuron into the postsynaptic neuron
• B) impulses traveling as electrical currents across the synapse
• C) impulses causing the release of a chemical signal and its diffusion across the synapse
• D) impulses ricocheting back and forth across the synapse
• E) the movement of calcium ions from the presynaptic into the postsynaptic neuron

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Definitions:

Conditioned Stimulus (CS)

In classical conditioning, a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, triggers a conditioned response.

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any learning needed.

Pavlovian Conditioning

A learning process that involves associating a previously neutral stimulus with an unconditioned stimulus to elicit a conditioned response similar to the unconditioned response.

Conditioned Stimulus (CS)

A previously neutral stimulus that, after being repeatedly presented prior to an unconditioned stimulus, elicits a conditioned response.