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Biological Psychology Overview

Sep 6, 2025

Overview

This lecture introduces biological psychology, exploring its definition, key concepts, and how biology influences human thought and behavior.

Introduction to Biological Psychology

  • Biological psychology studies the connection between biological processes and psychological behavior.
  • It examines how the brain, neurotransmitters, and genetics affect behaviors, feelings, and thoughts.
  • This field is also known as biopsychology or psychobiology.

Key Areas of Study

  • Focuses on how the nervous system and brain structure influence behavior.
  • Explores the role of hormones and neurotransmitters in mood and action.
  • Studies genetic influences on psychological traits and disorders.

Methods in Biological Psychology

  • Uses experiments, brain imaging, and case studies to link biology with behavior.
  • Employs techniques like EEG, fMRI, and PET scans to study brain activity.

Importance and Applications

  • Helps explain mental health disorders through biological causes.
  • Informs drug development and therapeutic interventions by targeting brain chemistry.
  • Bridges psychology with other sciences like biology, neurology, and genetics.

Key Terms & Definitions

  • Biological Psychology — the study of how biological processes affect psychological functions and behavior.
  • Neurotransmitter — a chemical that transmits signals across synapses between neurons.
  • Nervous System — a network of cells that carries information to and from all parts of the body.
  • Hormones — chemicals produced by glands that influence behavior and bodily processes.

Action Items / Next Steps

  • Review course textbook chapters on biological psychology.
  • Familiarize yourself with main brain structures and their functions.
  • Prepare for a quiz on key biological terms and methods.