What Is Characteristic of Someone in a Coma

question 107

Multiple Choice

What is characteristic of someone in a coma?

• A)No brain activity and no response to any stimulus
• B)Low, steady brain activity and no response to any stimulus
• C)Limited responsiveness, such as increased heart rate in response to pain
• D)Brief periods of purposeful actions and speech comprehension

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Definitions:

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and function best in relatively bright light.

Visual Information

Visual information encompasses details that are perceived through the sense of sight, including colors, shapes, motion, and spatial relationships, which are processed by the visual cortex.

Wavelengths

The distance between successive peaks of a wave, especially points in a sound wave or electromagnetic wave.

Trichromatic Theory

The idea that three types of cone receptor cells in the retina are responsible for color perception. Each type responds optimally to different, but overlapping, ranges of wavelengths.