Chapter 49

Question 1

What is stereognosis?

Answer 1

a sense of recognizing the size, shape, and texture of an object

Question 2

Distinguish between reception, perception, and reaction?

Answer 2

– reception: stimulation of a receptor (light, touch, sound, etc.)

– perception: integration and interpretation of stimuli

– reaction: only most important stimuli elicit a reaction

Question 3

Differentiate between sensory deficits, sensory deprivation, and sensory overload?

Answer 3

– sensory deficit: deficit in the normal function of sensory reception and perception

• may result in another sense compensating for the deficit

– sensory deprivation: inadequate quality or quantity of stimulation

• often is due to environment changes

– sensory overload: reception of multiple, excessive sensory stimuli

• results in brain unable to respond to certain stimuli due to overload