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Brain Tour – Lesson two. Limbic system. A group of brain areas involved in emotional reaction and motivated behaviors. Includes the amygdala, hippocampus, and hypothalamus. Hippocampus (seahorse). MEMORY Forms long term memories for facts and events. - PowerPoint PPT Presentation
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BRAIN TOUR – LESSON TWO
LIMBIC SYSTEM
• A group of brain areas involved in emotional reaction and motivated behaviors. • Includes the amygdala, hippocampus, and hypothalamus.
HIPPOCAMPUS (SEAHORSE)
• MEMORY
• Forms long term memories for facts and events.
• Helps us make connections between the past and the present.
• Involved in spatial navigation and spatial memories.
AMYGDALA (ALMOND)
• EMOTION• FEAR AND AGGRESSION
• Involved in the arousal and regulation of emotion and our initial emotional response to sensory information.
• Memory of emotional events
HYPOTHALAMUS
• Involved in drives associated with survival (hunger, thirst, emotion, sex, and reproduction)
• Brain’s blood-analysis laboratory (monitors to determine your body’s condition)
• Regulates body temp by sweating or shivering
THE CEREBRUM AND THE FOUR LOBES OF THE BRAIN
The Cerebrum
Largest structure of the brain
Uppermost part of the brain In charge of most sensory,
motor, and cognitive processes
Two Halves of the Cerebrum
Divided into two halves called cerebral hemispheres which control actions on the opposite side of the body
Corpus Callosum- the large band of fibers that connects the two halves of the cerebrum.
Allows the two sides to communicate
Cerebral Cortex
A collection of several thin layers of cells covering the cerebrum
Responsible for higher thought processes
Wrinkling allows more cells to exist in a small space
22 week old fetus brain
Adult Brain
The Four Lobes – Occipital Lobes
Located at the bottom-back of the cerebrum Contains the Visual Cortex
Parietal Lobes
Located at the top back of the cerebrum
Spatial abilities, receives sensory information from joints, organs, taste buds.
Contains the Somatosensory Cortex Processes information
form skin Pressure, pain, touch,
temperature
Somatosensory Cortex
Temporal Lobes
Located at the sides of head, just above the ears
Processes memory, perception, emotion
Contains: Auditory Cortex -
processes sound Wernicke’s Area –
language comprehension
Frontal Lobes Located in the front Involved in judging,
planning, short-term memory, thinking creatively, and personality
Frontal Lobes (continued)
Contains the Motor Cortex – band of nerves that issues orders to muscles to produce voluntary movement
Also Contains: Broca’s Area – involved in speech
production Allows us to speak fluently and
smoothly
Motor Cortex
FTOP
https://www.youtube.com/watch?v=c6kRP41ygrI https://www.youtube.com/watch?v=QPLZ_WUsK88 https://www.youtube.com/watch?v=XP9IEoCw5W4