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Definition A neuron is a specialized cell in the nervous system that transmits information throug...

Definition An unconditioned stimulus is something that naturally and automatically triggers a res...

Definition An unconditioned response refers to an automatic, instinctive reaction to a stimulus t...

Definition Stimulus generalization in classical conditioning refers to a phenomenon where an orga...

Definition Stimulus Discrimination: The process by which an organism learns to respond differentl...

Definition Spontaneous recovery refers to a phenomenon in classical conditioning where a conditio...

Definition A neutral stimulus is a stimulus that does not naturally elicit a specific response fr...

Definition Higher order conditioning is a concept in classical conditioning where a neutral stimu...

Definition Extinction in classical conditioning refers to the process by which a conditioned resp...

Medicalization Medicalization is the process by which non-medical problems become defined and tre...

The Sick Role The concept of the sick role was introduced by sociologist Talcott Parsons in 1951 ...

Providing Aid and Assistance Societies provide assistance for a variety of reasons—some rooted in...

Perspectives on Forced Help At what point—if ever—should a society require someone to accept help...

Definition Acetylcholine (ACh) is a neurotransmitter, which is a chemical messenger that helps tr...

Definition The cerebral cortex is the outer layer of the brain, often referred to as the "gray ma...

Definition The cerebellum is a part of the brain located at the back of the head, below the cereb...

Definition The brainstem is the lower part of the brain that connects it to the spinal cord. It p...

Definition The thalamus is a crucial part of the brain located deep within the center, near the t...

Definition A synapse is a tiny gap between neurons where communication occurs through chemical me...

Definition The sympathetic nervous system is part of the autonomic nervous system, which controls...