Psychology Exam 1: Brain and Behavior with 100% complete verified solutions

Dendrites collect information Cell body/soma processes information Axon sends info to other nerve cells glial cells help in the general care and feeding of neurons Synapses area between nerve cells agonists drugs that increase communication How do agonists increase communication? block uptake of neurotransmitters so they are in the synapse longer mimic neurotransmitters Antagonists drugs that block communication How do antagonists block communication? speed uptake of neurotransmitters Block receptor site cause leaking in pre synaptic neuron Acetylcholine (Ach) helps memory and attention Norepinepherine (NE) arousal,alertness, wakefulness, and some emotion Dopamine (DA) reward/pleasure, motor learning Seratonin (5-HT) sleep/dream, appetite and emotion GABA decreases activity in the brain Glutamate excites Endorphins pain relief, pleasure Central Nervous System brain and spinal cord Peripheral Nervous System connects CNS to body's organs and muscles Somatic nervous system conveys info between voluntary muscles and the CNS Automatic Nervous System carries info to and from involuntary and automatic commands Cerebellum controls motor skills Pons relays info to cerebellum to rest of the brain Medulla coordinates heart rate, circulation and respiration reticular formation regulates sleep/wakefulness,arousal Limbic System Hypothalamus amygdala hippocampus Thalamus Hypothalamus regulates body temp, hunger, thirst and sexual behavior Amygdala forms emotional memories Hippocampus creates new memories so they can be stored long term Thalamus relays/filters info from senses to cerebral cortex Basil Ganglia set of subcortical structures that directs intentional movement Frontal Lobe movement, planning, memory and judgement Temporal lobe hearing and language Parietal processes info about touch occipital lobe processes visual info corpus callousum bundle of fibers that separates the two hemispheres of the brain CAT structural imaging MRI structural imaging involving powerful magnets to see a clear picture of the brain EEG functional imaging that is the cheapest and least invasive PET functional imaging involving radioactive sugar to identify most active parts of the brain fMRI using MRI technology to see blood flow pattern when brain reacts to stimuli; functional imaging