Brain Disorders Library
40-condition encyclopedia with clinical neurology, BrainFacts, NeuroWiki, Riisfeldt, AAN, and PubMed sources — every entry fully illustrated.
Major Depressive Disorder
Involves dysregulation of serotonin, norepinephrine, and dopamine systems. Reduced hippocampal volume and prefrontal cortex activity.
Generalized Anxiety Disorder
Amygdala hyperactivity, reduced prefrontal regulation, GABA system dysregulation, elevated cortisol.
Attention Deficit Hyperactivity Disorder
Dopamine and norepinephrine dysregulation. Reduced prefrontal cortex volume and activity. Delayed cortical maturation.
Autism Spectrum Disorder
Altered connectivity patterns, enlarged brain volume in early development, mirror neuron system differences.
Post-Traumatic Stress Disorder
Amygdala hyperactivity, hippocampal volume reduction, prefrontal cortex hypoactivity, HPA axis dysregulation.
Schizophrenia
Dopamine hypothesis, glutamate dysfunction, reduced gray matter, disrupted connectivity, enlarged ventricles.
Bipolar Disorder
Circadian rhythm disruption, dopamine dysregulation, white matter abnormalities, altered limbic-prefrontal connectivity.
Obsessive-Compulsive Disorder
Hyperactivity in cortico-striato-thalamo-cortical circuits. Serotonin system involvement. Basal ganglia dysfunction.
Alzheimer's Disease
Amyloid plaques, neurofibrillary tangles, synaptic loss, hippocampal atrophy, cortical thinning.
Parkinson's Disease
Loss of dopaminergic neurons in substantia nigra. Lewy body formation. Alpha-synuclein aggregation.