Examlex
Failure to resolve the tasks of middle adulthood leads to a concern for only one's own needs and comforts, resulting in what Erikson called
Neurotransmitter
A chemical substance that transmits nervous impulses across a synapse from one nerve cell to another.
Facial Expressions
Facial expressions are configurations of facial movements that convey emotions, intentions, or social information, and are a fundamental aspect of human non-verbal communication.
Startle Reflex
An involuntary response to a sudden or unexpected stimulus, exemplified by the body jerking or flinching.
Operational Definition
A clear, precise definition of a variable in terms of how it is to be measured or manipulated in a specific study.
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