This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 1 PSYC 100: Introductory Psychology Chapter 3 , Part 2 (pp. 76-100) Tuesday, February 12, 2008 B I O L O G I C A L B A S E S O F B I O L O G I C A L B A S E S O F M E N T A L L I F E & B E H A V I OR M E N T A L L I F E & B E H A V I OR Lecture Outline Lecture Outline ¡ Central Nervous System ß Spinal Cord ß Hindbrain ß Midbrain ß Subcortical Forebrain ß Cerebral Cortex ß “Name that Brain Damage” ß Cerebral Lateralization • Video: “Severed Corpus Callosum” ¡ Genetics and Psychology Human Nervous System Human Nervous System Overview of the Spinal Cord Overview of the Spinal Cord ¡ Sends information from sensory neurons to the brain and it relays motor commands back to ¡ Has dorsal (back or top side) and ventral (belly or bottom side) roots that carry sensory and motor ¡ Cross section of the spinal cord: ß H-shaped structure in the center is gray-colored and consists of ß The outer regions in the cross-section are white in appearance (due to 2 The Spinal Cord The Spinal Cord Processes sensations and controls movements in the The body is arranged in a series of segments, and nerves from a particular segment of the spinal cord primarily enervate a particular The Human Brain The Human Brain ¡ Weighs about ¡ Consists of approximately ¡ 10-20 billion are in the ¡ 60-240 trillion ¡ “ The most complex structure in the universe ” Midline View of Human Brain Midline View of Human Brain The Hindbrain The Hindbrain ¢ Hindbrain = ¢ Medulla – continuous with the ß all the ascending (sensory) and descending (motor) nerve fibers connecting the brain and...
View Full Document
- Spring '08
- Psychology, Corpus callosum