Lecture3--NervousSystem

Lecture3--NervousSystem - 9/29/10 LECTURE OUTLINE CHAPTER...

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9/29/10 1 C HAPTER 3: B IOLOGICAL PSYCHOLOGY Lecture 3: The Nervous System (p. 108-123; 129-136) L ECTURE OUTLINE A history of biological psychology The parts of the nervous system A HISTORY OF BIOLOGICAL PSYCHOLOGY ANCIENT EGYPT: THROWING THE BRAIN OUT WITH THE TRASH Where’d my brain go? How can I be thinking this without a brain? ANCIENT GREECE: THE FOUR HUMOURS PHRENOLOGY: MY, WHAT A LUMPY SKULL YOU HAVE… Franz Joseph Gall (1758-1828)
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9/29/10 2 BEHAVIORISM: THE BLACK BOX The mind as a black box Don’t need to worry about what comes in between input and output Nothing to see here… TODAY: THE ERA OF THE BRAIN An explosion of brain science But do we know as much as we think? The problem of causation What is outside the “black box” matters too! HOW WE STUDY THE BRAIN Read all about it! p. 129-133 T HE PARTS OF THE NERVOUS SYSTEM STARTING WITH THE BIG PICTURE The nervous system Responsible for everything we think, feel, or do Receives sensory information, Organizes and interprets information Allows for responses to information Next week: The details Neurons =Nerve cells specialized for communication D IVISIONS OF THE N ERVOUS S YSTEM Central Nervous System Encased in bone Brain Spinal Cord Peripheral Nervous System All other nerve cells in body Sensory nerves to brain Motor nerves from brain
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9/29/10 3 DIVISIONS OF THE NERVOUS SYSTEM SOMATIC NERVOUS SYSTEM Transmits sensory signals to the spinal cord + brain (CNS) via nerves Sensory (afferent) nerve fibers Transmits signals from CNS to muscles, joints and skin Motor (efferent) nerve fibers Controls voluntary movement DIVISIONS OF THE NERVOUS SYSTEM A UTONOMIC NERVOUS SYSTEM Controls involuntary actions of internal organs, glands and smooth muscles Messages run between CNS and ANS Participates in the experiences of emotion Responsible for the involuntary functions we don’t normally think about e.g. heart rate, digestion and perspiration A UTONOMIC NERVOUS SYSTEM Sympathetic Nervous System Parasympathetic Nervous System “Fight or Flight” (mobilize body in face of stress) “Rest & Digestion” (energy conserving functions )
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This note was uploaded on 11/08/2010 for the course PSC PSC 001 taught by Professor Paoli during the Fall '09 term at UC Davis.

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Lecture3--NervousSystem - 9/29/10 LECTURE OUTLINE CHAPTER...

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