You Notice That Little Charlie Can Now Use His Thumb

question 118

Multiple Choice

You notice that little Charlie can now use his thumb and index finger to pick up small objects like marbles and cereal flakes. This ability is called the development of:

• A) the pincer grasp
• B) the visually guided reach
• C) the fundamental flexion reflex
• D) dynamic reach

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Definitions:

Positive Reinforcement

The reinforcement of a response by the addition or experiencing of a pleasurable stimulus.

Pleasurable Consequence

A positive outcome or reward that follows a behavior, making it more likely to occur again in the future.

Negative Reinforcement

The reinforcement of a response by the removal, escape from, or avoidance of an unpleasant stimulus.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, emphasizing the role of reinforcement in shaping behavior.