The Brain andBehavior:The Basics • Dr. Matt Robinson • CJ 3400 • “Theories of Crime” • Appalachian State University
Levels of Analysis Cell Organ Organism Group Community/ Organization Society
Behavior in the contextof organs • Organs are parts of organism … • Organs have specialized functions for survival of organism… • Organs include, most importantly, the human brain
Behavior in the contextof organs • Main area of research at organ level is the BRAIN • The brain is the organ of human behavior … • The brain, interacting with environmental influences, determines how we behave…
Behavior in the contextof organs • All environmental influences must be received via the senses, perceived, and processed by the brain before a person can behave. • Everything we smell, see, hear, taste, or touch is experienced in our brains. • No behavior occurs without sensory information being relayed to the brain.
The Role of the Brain in Behavior Environment Behavior
Main Brain Functions • There are FIVE MAIN brain functions: • Sensation • Motion / Movement • Reproduction / Internal Regulation • Emotion • Thought / Cognition • Most important for crime?
Brain Structure and Process • Brain can be divided into: http://uwf.edu/jgould/triunebrain.pdf
Thinking in terms of evolution … http://faculty.washington.edu/chudler/dev.html
Thinking in terms of evolution … http://www.enchantedlearning.com/subjects/anatomy/brain/Animals.shtml http://www.brainmuseum.org/sections/index.html http://serendip.brynmawr.edu/bb/kinser/Size2.html
Brain Structure and Process • Brain can be divided into: • Cortex and Subcortex
Brain Structure and Process • Cerebrum -- largest portion of cortex -- wrinkled mass in 2 hemispheres • Divided into FOUR LOBES • http://en.wikipedia.org/wiki/Cerebral_cortex
Brain Structure and Process • Frontal lobe – thought, intellect, associations, planning, intent, inhibition/self control • Parietal lobe – works with frontal lobe, movement, sensation • Occipital lobe – vision, abstract concepts • Temporal lobe – hearing, learning/memory, autonomic response, regulation of hormones, emotion, aggression
Brain Structure and Process http://www.brainmuseum.org/circuitry/index.html
Obviously then … • The parts most important for criminal behavior are frontal lobes and temporal lobes • Thus, overactive temporal lobe or underactive frontal lobe can result in “bad” behavior …