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Learning Review Test 1

Learning Review Test 1 - Learning Review Test 1 What is...

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Learning Review: Test 1, February 19, 2008 What is Learning? - Learning is an enduring change in the mechanisms that produce behavior resulting from environmental stimuli. - This is not the same as performance Background: - Rene Descartes - “Dualism”, voluntary vs. involuntary action - Mind and Body are separate Presumptions of Learning Theory: - Environmental Determinism - Evolutionary Continuity - Empiricism - Logical Positivism: Truth knowable through science; falsifiable, parsimonious, “general process approach” Primer on Experimental Design: - Logic Issues o experimental vs. control groups o independent vs. dependent variables o single subject vs. between subject designs - Measurement Issues o Operational definitions o Outcomes rate, intensity, duration, etc… interval, etc… Elicited Behavior, Habituation, and Sensitization: Elicited Behavior: - S o stimulus o detectable environmental event - R o response o any behavior you can perform Reflexes - Most Basic Unit of Behavior - Reflex Arc o Afferent (Sensory) neuron
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o Interneuron (optional) o Efferent (Motor) neuron - Typically not learned - Simple or hierarchical arrangement - Can be conditional Modal Action Patterns (MAPs) - pattern of behavior shared by most members of a species - typically more complex than a reflex - typically triggered by “sign stimuli” Sequences - Motivation - Ethology Version: o Appetitive behaviors: how to find what you’re looking for. o Consumatory behaviors: getting what you’re looking for. - Systems Approach Version: o General Search Mode o Focal Search Mode o Handling/Ingesting Mode Habituation - Response diminishes with repeated exposure to a stimulus o different from sensory adaptation and fatigue - After delay, spontaneous recovery Sensitization - Response increases with repeated exposure to stimulus o Like the opposite of habituation, only with less stimulus specificity
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