Since All Action Potentials Are Identical, the Intensity of a Sensation

question 48

Multiple Choice

Since all action potentials are identical, the intensity of a sensation depends on:

• A) whether a myelinated or unmyelinated neuron has been stimulated.
• B) the duration of the stimulation.
• C) whether the neuron stimulated is a pre- or postsynaptic neuron.
• D) the total number of neurons stimulated and the frequency of their discharge.
• E) the presence of an EPSP or IPSP, which allows for a graded response.

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Definitions:

Slow-Wave Sleep

Slow-Wave Sleep refers to the deep sleep stage characterized by low frequency, high amplitude delta waves, important for memory consolidation and recovery.

REM Sleep

A phase of sleep characterized by rapid eye movement, during which vivid dreams commonly occur.

Hypnagogic Sensations

Experiences at the onset of sleep, including visual, auditory, or tactile hallucinations that occur in the transition from wakefulness to sleep.

Narcolepsy

An ongoing sleep problem marked by significant day time drowsiness and abrupt sleep onslaughts.