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Historical view Psychology come from the study of two disparate yet connected fields, Philosophy and biology.
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Modern View Psychology is the study of behavior (in its broadest context).
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Philosophical view The Platonic allegory of Cupid and Psyche, the passions that rule mankind.
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Classical religious people The soul as seen from the hands of Augustine and Aquinas
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Two ways at looking at man and how he interprets his world Socratic/Platonic view. All knowledge is already contained in the individual. Do not use your sensory experience to understand the world around you.
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Meno’s Slave Through question and answer Socrates showed that an untrained slave could show he understood the relationship between the hypotenuse and the two sides of a square.
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Cave allegory Prisoners are chained to a wall. They see shadows on the wall and depict this as real. The shadows are only reflections of people before a fire outside the mouth of the cave.
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The issue for Psychology What distinguishes the barbarian from non- barbarian?
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The non-barbarian is locked in argument with his fellow non- barbarian.
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What is the argument all about? The answer to four specific questions.
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Question 1 The problem of knowledge: how is it that I know anything (reason).
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Types of knowing Experiential knowledge Intuitive knowledge
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Question 2 What does one know? The problem of reason.
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What is the one thing each of you know without error?
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Your own existence. Descartes “Cogito ergo sum”
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Question 3 How should I behave, i.e. origin of individual conduct (morality)?
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Question 4 The problem of governance?
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Scope of Psychology
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The organism as a whole How is the individual effected by…….?
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The Central Nervous System (CNS) The brain and peripheral nervous system is the organ system of behavior. Anesthetize the brain anesthetizes behavior at all levels.
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3 methods of studying the brain Record
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Levels of analysis Single neurons Multiple neurons Thousands of neurons
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Reading the Living Brain Electroencephalography -- EEG
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(cont.)
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Method 2 Lesion: to cut or remove
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An example Kluver – Busy syndrome in monkeys Removal bilaterally of the temporal pole in monkeys.
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Behavioral Changes Post Surgery High Oral behavior Pacing in the light Passivity High sexual activity
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Kling – Riggs study (cats) Again removal of the “tip” of the temporal pole
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Behavioral changes Extreme well directed aggressiveness.
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Method 3 of brain study Stimulation
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Scientific Method Develop an idea
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The idea ASSUME: LEARNING IS A GENETIC PROCESS
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Rework the idea until a testable hypothesis can be construed.
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Reworked idea THE ABILITY TO RUN A MAZE WITH NO ERRORS IS GENETICALLY DETERMINED
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ASK THE QUESTION: WHAT IS THE MOST APPROPRIATE ANIMAL TO USE TO ANSWER THE QUESTION PROPOSED BY THE HYPOTHESIS?
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Humans? Rats? Fruit flies? Squid – Octopus?
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RATS WHO RUN A MAZE WITH THE FEWEST ERROR TRIALS ARE BETTER LEARNERS THAN RATS WHO MAKE MORE ERRORS IN THE SAME NUMBER OF TRIALS.
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How do I manipulate genes? How do I manipulate learning?
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Selective breeding manipulates genes: Breed fast learners to fast learners, slow learners to slow learners.
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Can the individual be used as its own control or do I need a control group.
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Use groups: fast learners against slow learners. After 20 generations there should be two groups of maze learners with no overlap between groups.
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What is the most appropriate statistical procedure I need to use.
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