> The interdisciplinary study of the [[Nervous System]], integrating [[Biology]], [[Psychology]], and computational approaches to understand its structure and function. It explores how neural mechanisms give rise to behavior, cognition, and disease. - [[Nervous System]] - [[Brain Networks]] - [[Default Mode Network (DMN)]] - [[Frontoparietal Control Network (FPCN)]] - [[Salience Network]] - Detects behaviorally relevant stimuli - Switches between [[Default Mode Network (DMN)|DMN]] and [[Frontoparietal Control Network (FPCN)|FPCN]] - Key regions: anterior insula, dorsal [[anterior cingulate cortex]] - [[Dorsal Attention Network]] - [[Ventral Attention Network (VAN)]] - Bottom-up, stimulus-driven attention to salient stimuli - Key regions: [[Temporoparietal Junction (TPJ)]], ventral frontal cortex - Disciplines - [[Neuropsychology]] - Brain–behavior relationships - Neuroimaging, cognitive testing, lesion studies - Network effects on memory, emotion, [[executive function]] - [[Cognitive Neuroscience]] - Experimental focus (fMRI, EEG) - Systems-level brain–behavior relationships - [[Clinical Neuroscience]] - Applies network research to psychiatric and neurological disorders - Brain Regions - [[Prefrontal Cortex]] - [[Hippocampus]] - [[Amygdala]] - [[Striatum]] - [[Anterior Cingulate Cortex]] - [[Hypothalamus]] - [[Default Mode Network (DMN)]] - Subsystems - [[Limbic System]] - Emotional processing, motivation, and memory formation - Includes [[Amygdala]] (emotion/salience), [[Hippocampus]] (episodic memory, spatial navigation), [[Hypothalamus]] (autonomic and endocrine regulation) - [[Executive Control Network]] - Cognitive control, [[Decision-Making]], and regulation of attention - Anchored in [[Prefrontal Cortex]] and [[Anterior Cingulate Cortex]] - Modulates responses from the [[Limbic System]] and coordinates with attentional networks - [[Default Mode Network (DMN)]] - Self-referential thought, autobiographical memory, and mental simulation - Functionally linked with [[Prefrontal Cortex]] and [[Striatum]] - Balances against task-positive networks (e.g., [[Frontoparietal Control Network (FPCN)]]) for efficient switching between rest and goal-directed states - Misc - [[Endogenous opioids]] --- ## Network Visualization ```mermaid graph TD     PFC[Prefrontal Cortex] --- HPC[Hippocampus]     PFC --- AMG[Amygdala]      PFC --- STR[Striatum]     PFC --- ACC[Anterior Cingulate Cortex]     AMG --- HPC     AMG --- HYP[Hypothalamus]     HPC --- HYP     ACC --- DMN[Default Mode Network]     PFC --- DMN     STR --- DMN ```