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Definition The limbic system is a group of interconnected brain structures that play a crucial ro...

Definition Lateralization refers to how different tasks or functions are divided between the left...

Definition The hippocampus is a small, curved structure located in the medial temporal lobe of th...

Definition The corpus callosum is a large band of nerve fibers in the brain that connects the two...

Definition The amygdala is a small, almond-shaped structure located deep within the brain. It pla...

Definition Epigenetics is the study of changes in gene expression that do not involve alterations...

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...