Answer:
A primary Circular reaction.
Explanation:
Bejamin is going thru a primary circular reaction. Based on his age and as the action he is performing is common in all of the children, sucking his thumb.
The primary circular reaction is a stage of cognitive development that happens between the 1st and the 4th month. The infant develops an accident action and then intentionally repeats it as he finds it pleasurable while learning to coordinate his movements in order to achieve the goal which is sticking his thumb in his mouth to find pleasure again.
It should be noted that the process of detecting environmental stimuli that are then converted to signals that can be detected by the nervous system is known as sensation.
Stimuli simply means an event that causes a particular functional reaction in a tissue or organ. It's the detectable change in the structure of an organism.
The process of detecting environmental stimuli and converting them into signals that can be detected by the nervous system is sensation.
Learn more about stimulus on:
brainly.com/question/24724623
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