Research Conducted by University Psychologist Philip Zelazo Helps Us to Understand

question 70

Multiple Choice

Research conducted by University psychologist Philip Zelazo helps us to understand

• A) how primitive reflexes develop.
• B) how stimulating primitive reflexes helps later motor development.
• C) why primitive infant reflexes disappear.
• D) how many different primitive reflexes infants have.

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Definitions:

Absolute Threshold

The minimum amount of sensory stimulation that can be detected 50% of the time.

Difference Threshold

A measure of the smallest increase or decrease in a physical stimulus that is required to produce a difference in sensation that is noticeable 50% of the time.

Psychophysical Threshold

The minimum level of stimulus intensity perceived by the sensory system.

Just Noticeable Difference

The smallest difference in stimulation required to detect a change in sensory inputs, also known as the difference threshold.