Want to understand the biological processes that underpin our behaviour? Look no further! Neurotransmitters are a core element of biological psychology and essential for the correct operation of brain circuits. This textbook focuses on eight core neurotransmitters and explores the machinery underpinning their function. This includes how they are synthesised, packaged, and facilitate communication between neurons. Each chapter focuses on a single neurotransmitter, outlining its machinery and discussing what research suggests about how the alteration of this machinery may contribute to various atypical behavioural states. This structure will help guide the reader through complex ideas in a clear and comprehensive manner. From Dopamine to Nitric Oxide, and from Acetylcholine to Serotonin, Brain and Behaviour places specific focus on how alterations in neurotransmitters can contribute to specific atypical behaviour such as ASD, Epilepsy, Depression, and Addiction. It is essential re