Researchers Have Found That

question 144

Multiple Choice

Researchers have found that:

• A)in myelinated axons,the action potential at each point in the axon gives rise to a new action potential at the next point.
• B)in unmyelinated axons,positively charged ions flow down the axon at a very fast rate,causing regeneration of the action potential at each node.
• C)throughout life,unused synaptic connections are pruned away as cells or their branches die and are not replaced.
• D)when a nerve impulse reaches the axon terminal's button-like tip,the action potential "hops" over to the receiving neuron's dendrites.

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Definitions:

Proximity

The physical or psychological closeness between people, objects, or ideas, often affecting perceptions and relations.

Stimulus

An external event or factor that induces a response or reaction in a biological organism.

Gestalt Grouping

Principles in psychology that explain how humans naturally organize visual elements into groups or unified wholes when certain principles are applied, such as similarity or proximity.

Subjective Contour

A visual illusion where contours are perceived where none actually exist, often created by surrounding stimuli.