THE LIMBIC SYSTEM. LOCATION THE LIMBIC SYSTEM IS BETWEEN THE BRAINSTEM AND CEREBRAL CORTEX.

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Presentation transcript:

THE LIMBIC SYSTEM

LOCATION THE LIMBIC SYSTEM IS BETWEEN THE BRAINSTEM AND CEREBRAL CORTEX

THE LIMBIC SYSTEM IS A DOUGHNUT-SHAPED SYSTEM OF NEURAL STRUCTURES; ASSOCIATED WITH EMOTIONS SUCH AS FEAR AND AGGRESSION  IT INCLUDES THE HIPPOCAMPUS, AMYGDALA, AND HYPOTHALAMUS.

THE AMYGDALA TWO LIMA BEAN- SIZED NEAURAL CLUSTERS INFLUENCES AGRRESSION AND FEAR LINKED TO EMOTION/ INFLUENCES EMOTION

AMYGDALA EXPERIMENTS PSYCHOLOGIST, IN 1939, LESIONED (CUT) THE PART OF A RHESOS MONKEY’S BRAIN THAT INCLUDED THE AMYGDALA, TURNING THE NORMALLY ILL-TEMPERED MONKEY MELLOW. LATER, WITH OTHER WILD ANIMALS, THE SAME EFFECT TOOK PLACE. WHEN SCIENTISTS ELECTRICALLY STIMULATED (CHARGED) THE AMYGDALA IN NORMALLY PLACID (MELLOW) ANIMALS, LIKE CATS, THE ANIMAL IN TURN BECOMES AGGRESSIVE, READY TO ATTACK.

THE HYPOTHALAMUS PERFORMS SPECIFIC BODILY MAINTENANCE DUTIES PERFORMS SPECIFIC BODILY MAINTENANCE DUTIES EXAMPLE: EXAMPLE: THINKING ABOUT SEX CAN STIMULATE (AROUSE) THINKING ABOUT SEX CAN STIMULATE (AROUSE) YOUR HYPOTHALAMUS TO SECRETE (ACTIVATE) YOUR HYPOTHALAMUS TO SECRETE (ACTIVATE) HORMONES. THROUGH THESE HORMONES, THE HORMONES. THROUGH THESE HORMONES, THE HYPOTHALAMUS CONTROLS THE ADJACENT HYPOTHALAMUS CONTROLS THE ADJACENT PITUITARY GLAND, WHICH IN TURN INFLUENCES PITUITARY GLAND, WHICH IN TURN INFLUENCES HORMONE RELASE BY OTHER GLANDS; PERFORMING BODILY MAINTENANCE. HORMONE RELASE BY OTHER GLANDS; PERFORMING BODILY MAINTENANCE.

THE HIPPOCAMPUS THE LIMBIC COMPONENT THAT PROCESSES MEMORY. THE LIMBIC COMPONENT THAT PROCESSES MEMORY. EXAMPLE: EXAMPLE: IF ANIMALS OR HUMANS LOSE THEIR HIPPOCAMPUS TO SURGERY OR INJURY, THEY BECOME UNABLE TO PROCESS MEMORIES. IF ANIMALS OR HUMANS LOSE THEIR HIPPOCAMPUS TO SURGERY OR INJURY, THEY BECOME UNABLE TO PROCESS MEMORIES.