Peter Is in a Deep Sleep and His Brain Wave

question 15

Multiple Choice

Peter is in a deep sleep and his brain wave pattern consists of low-frequency delta waves.Which stage of sleep is Peter experiencing

• A) stage 1
• B) stage 2 
• C) stage 3 or 4
• D) REM

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Definitions:

Night Vision

The ability to see in low-light conditions, achieved through the adaptation of the eyes and various technologies designed to enhance human vision in the dark.

Blind Spot

The area in the visual field that lacks photoreceptor cells on the retina where the optic nerve exits the eye, resulting in a lack of visual detection.

Ganglion Cells

Retinal neurons that absorb visual data from photoreceptors and send it to the brain through the optic nerve.

Bipolar Cells

A type of neuron in the retina that plays a role in transmitting visual signals from the photoreceptors to ganglion cells.