Biological and Psychological Theories

EARLY BIOLOGICAL APPROACHES

Physiognomy and Phrenology

Body Types

Earnest Hooton and the Criminals Study

William Sheldon and Somatotypes

The Gluecks and Juvenile Delinquency

Early Biocriminology

Perspectives on Heredity, Human Evolution, and Crime

Eugenics

MODERN BIOLOGICAL PERSPECTIVES

Genetic and Evolutionary Perspectives

XYY Syndrome

Genes and Behavior

Twin and Adoption Studies

Evolution, Aggression, and Survival

Neurological Perspectives

Neurotransmitters

Hormones

The Brain

Environmental Perspectives: Alcohol and Drugs

Alcohol

Drugs

Critiques

PSYCHOLOGICAL AND PSYCHIATRIC PERSPECTIVES

Traditional Psychoanalytic Theory

Modern Psychological and Psychiatric Perspectives

Behaviorism

Cognitive Theory

Language Impairment and IQ

Antisocial Personality Disorder, Psychopathy, and Insanity

SUMMARY