PSYC 2113 Lecture 1: PSYC 2113, lecture 1
Document Summary
Review of neuroscience & the cns from intro psych: Neuroscience focuses on understanding the role of the nervous system in disease and behaviour. Inverse agonists increase production of competing biochemicals that deactivate the neurotransmitter or produce opposite effects. Brain structure: two main parts, brainstem and forebrain, three main divisions, hindbrain, midbrain, forebrain, cerebral cortex. Largest part of the brain: contains more than 80 percent of all the neurons in the central nervous system. Limbic system: thalamus, receives and integrates sensory information, motor pathways, hypothalamus, basal ganglia, eating, drinking, aggression, sexual activity, fight-or-flight, regulates endocrine system via pituitary gland, involved in movement starting and stopping movement, modulating speed, intensity, etc. The endocrine system ***need to know: the hypothalamic-pituitary-adrenalcortical axis (hypac or hpa axis) Integration of endocrine and nervous system function: hpa axis regulates the stress response. The end product of the activation of the hpa axis is cortisol.
