Tag: dopamine
Behavioral Inhibition System (BIS): Anxiety & Avoidance
Introduction to the Behavioral Inhibition System (BIS) The Behavioral Inhibition System (BIS) stands as a foundational construct within personality psychology, particularly central to Jeffrey Gray’s influential Reinforcement Sensitivity Theory (RST). Conceptually, the BIS is defined as a neurobiological system responsible for detecting and responding to environmental cues signaling potential punishment, non-reward, or, crucially in the […]
Parkinson’s Disease: Understanding & Managing Apathy
Introduction and Definition of Apathy in PD Apathy represents one of the most pervasive and disabling non-motor symptoms associated with Parkinson’s Disease (PD), frequently emerging early in the disease course and often preceding significant motor manifestations. It is defined clinically as a primary syndrome of diminished motivation, characterized by a reduction in goal-directed behavior, cognition, […]