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Lecture 12

Lecture 12

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Eileen Wood

Michael Matthews February 14, 2012 Lecture 12 • Motivation and emotion: o All of the processes that initiate, direct, and sustain behaviour. o Motives are needs or desires that direct or energise our behaviour o Goal directed • Motivation: o When motives are internal they push us to act- call these drives o When motives are external (or outside of us) we call them incentives- they pull or entice us to act. • How do we direct our behaviour? o Self-regulation: organizes and directs your own being o Homeostasis: stable internal equilibrium, temperature control, reflexive/ involuntary, supplement/ voluntary behaviours o How does homeostasis work?  Autonomic nervous system (sympathetic, parasympathetic) o These systems control the compensatory mechanisms  Hypothalamus (governs or controls the system) • The primary drives: thirst and hunger o Primary drive stems from unlearned motives to satisfy biological needs. o Satisfied through- reflexive compensatory mechanisms, couples with directed behaviour • Thirst: o Extracellular thirst: occurs when body tissues lose fluids, such as when one perspires while exercising. o Intracellular thirst: occurs when body cells lose water, such as when one eats salty foods. o How do we solve the thirst problem?  1-Antidiuretic hormone (ADH), 2-Volume receptors, 3-Osmoreceptors, 4- behaviour (getting a drink). • Hunger drives: o Internal cues: motivate hunger by stimulating the hypothalamus in the brain, receptors from s
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