Neurobiology of Psychiatric Disorders: Genetics and Brain Pathways

Why do psychiatric disorders manifest, and how does the brain's biology influence them? Decades of research have revealed that conditions like depression, schizophrenia, and bipolar disorder are deeply rooted in complex genetic and neurobiological pathways. This course provides a clear, scientific gateway into the biological foundations of mental health. In this text-only course, you will explore the scientific developments shaping psychiatric pathophysiology. You will transition from basic neuroanatomy to understanding how neurotransmitters, cellular signaling, and genetic risk factors shape mental health conditions. What you'll learn: - Understand the genetic basis of psychiatric disorders, including modern concepts like polygenic risk scores and gene-environment interactions. - Explore the role of major neurotransmitter systems, such as dopamine, GABA, and glutamate, in regulating mood and cognition. - Analyze the molecular mechanisms of depression, including neurogenesis, synaptic plasticity, and the lithium-GSK3 hypothesis. - Examine the neurobiology of schizophrenia, focusing on the dopamine pathway, DARPP32, and the glutamate hypothesis. - Investigate how cellular calcium signaling and key proteins like DISC1 and CREB influence behavior, addiction, and mood regulation. - Evaluate how researchers use behavioral assays and molecular models to study human psychiatric conditions. The course begins with essential terminology and foundational neurobiology before diving into specific psychiatric disorders and their underlying molecular pathways. You will consolidate your learning through written analysis exercises and conceptual review questions designed to test your comprehension of the text. This program is designed for beginners, students, and science enthusiasts seeking a clear, accessible introduction to neuropsychiatry without requiring prior advanced coursework in medicine or biology. Start reading today to unlock a deeper, science-based understanding of the human mind and psychiatric health.