Sabra and Yancy Are Fraternal Twins

question 141

True/False

Sabra and Yancy are fraternal twins.Yancy has Down syndrome.Yancy attains motor milestones in an orderly manner very similar to Sabra,though at a later age.This suggests an experiential determinant of motor development.

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Definitions:

Physiological Activation

An increase in bodily functions in response to stimuli, indicating a heightened state of arousal.

Yerkes-Dodson Law

A theory suggesting that there is an optimal level of arousal for performance on any task; too little or too much arousal can impede performance.

Self-determination Theory

A psychological theory focused on motivation, concerning people's basic psychological needs for competence, relatedness, and autonomy.

Cannon's Theory

Also known as Cannon's fight-or-flight theory, it describes the body's automatic response to threatening or stressful situations.