psych106-9

psych106-9 - Lecture 9 (Feb 1 st ): BRAIN DEVELOPMENT...

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Unformatted text preview: Lecture 9 (Feb 1 st ): BRAIN DEVELOPMENT Lecture Outline 1) Overview of Neural Development 2) The Nature vs. Nurture Issue 3) Stages of Neural Development 4) Path-Finding by Axons (Nature) 5) Modi¡cation of Development by Sensory Experience (Nurture) 6) Brain Evolution 7) Brain Size & Intelligence Development of the Nervous System (NS) “Pre-natal” vs. “ Post-natal ” Pre-natal terms: Gestation : period of time between conception and birth, i.e., pregnancy Embryonic : early prenatal development Fetal : late Development of the Nervous System (NS) “Pre-natal” vs. “ Post-natal ” Pre-natal terms: Gestation : period of time between conception and birth, i.e., pregnancy Embryonic : early prenatal development Fetal : late prenatal development Human Nervous System begins to form at 2 weeks gestation Neural Plate -> Neural Tube -> CNS (brain and spinal cord) Eyes & optic nerve (cranial nerve #2)?? Note: This lecture on BRAIN DEVELOPMENT (part of CNS), not on Spinal Cord (the other part of CNS) or PNS (Ventricular Zone) Brain Development During Gestation / At Birth At Birth = 350g, At 1 year = 1000g (adult = 1,200 to 1,400g) HUMAN BRAIN DEVELOPMENT: Prenatal to 12 years * Reorganization of synapses occurs throughout life…....
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This note was uploaded on 09/15/2011 for the course PSYCH 106 taught by Professor Staff during the Spring '11 term at UCSD.

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psych106-9 - Lecture 9 (Feb 1 st ): BRAIN DEVELOPMENT...

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