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Neurotransmitters Chemicals that influence the firing of nerve cells Can “excite”-make firing more likely Or “inhibit” make firing less likely
Neurotransmitter FunctionAssociated Diseases Acetylcholine Found at neuromuscular junction; memory and learning Alzheimer’s disease (decreased Ach) Black widow spider (increased Ach) Botox (decreased Ach) Curare (decreased Ach) Dopamine Movement, learning, attention, emotions, and rewards Parkinson’s disease (decreased dopamine) Schizophrenia (increased dopamine) Depression (decreased dopamine) Serotonin Sleep, mood, hunger, arousal Depression (decreased serotonin) Anorexia (increased serotonin) Sleep disorders Norepinephrine Fight or flight response Depression (decreased NE) Endorphins (endogenous opiates) Pain, emotions Mimicked by opiates (heroin, morphine, codeine) Runners high Neurostimulation GABA (gamma amino- butyric acid) Hunger and sleep, inhibits CNS Alcohol consumption causes an increase in GABA
Effects of Drugs + Meds on Neurotransmitters Alcohol- Increases GABA, Increases Dopamine Prozac- Increases Serotonin levels Same with Zoloft, Paxil, Celexa, Luvox Opiates- Increases Dopamine, Mimics Endorphins Morphine and heroin Nicotine- Imitates Acetylcholine
How the Brain Works 1. Background: The Synapse 2.
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Neural Communication Biological Psychology branch of psychology concerned with the links between biology and behavior some biological psychologists call.
Copyright © Allyn & Bacon 2007 Chapter 3 Biopsychology and the Foundations of Neuroscience This multimedia product and its contents are protected under.
AP Biology Nervous System: Neurons and Action Potential.
Other Medicines. Andrenergic Antagonists (Blockers) Bind to receptor site but do not cause an action Bind to receptor site but do not cause an action.
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The Nervous System. Nervous systems Perform the three overlapping functions of sensory input, integration, and motor output Perform the three overlapping.
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LECTURE 5 DRUGS AND ALTERED CONSCIOUSNESS (this material is covered in Drugs and Behaviour section of chapter 4, Martin et al) David Pearson Room T10,
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Nervous System and Nervous Tissue. Master control and communication Functions (system level and cell level) Sensory input – monitoring stimuli Integration.
Chemotherapy. Assumption of the Biological Approach The biological approach is interested in how behaviour is influenced by chemical imbalances in the.
Consciousness: Focus on Awareness. Consciousness Our awareness of our own existence, sensations, and cognitions / Stream of consciousness / What function.
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