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Glossary of EPPP Brain Anatomy

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Hindbrain
1. Medulla
2. Pons
3. Cerebellum
Hindbrain Functions
Balance, Posture, Coordination
Midbrain
Reticular Activating System
(RAS)
Midbrain Functions
Consciousness, Arousal, Wakefulness
Forebrain
(Cortical and Subcortical Structures)
1. Thalamus
2. Hypothalamus
3. Basal Ganglia
3. Limbic System
Thalamus Functions
(Forebrain)
Relay station for all sensory input except Olfaction
Hypothalamus Functions
(Forebrain)
1. responsible for vital functions of hunger, thirst and temperature regulation
2. Integrates responses needed to maintain internal homeostasis
3. SCN mediates sleep-wake cycle
Suprachiasmatic Nucleus (SCN)
located in hypothalamus. mediates sleep-wake cycle. SCN involved in Seasonal Affective Disorder
SAD
Seasonal Affective Disorder-Suprachiasmatic Nucleus (SCN) seems involved.
Basal Ganglia Functions
(Forebrain)
plan, organize, and coordinate bodily movement
involved in motor movement symptoms of Huntington's and Parkinson's
also involved in expression of emotional states (smiling when happy, running when scared)
Basal Ganglia Structures
(Forebrain)
1. Caudate Nucleus
2. Putamen
3. Globus pallidus
4. Substantia Nigra
Limbic System Functions
(Forebrain)
Primarily associated with the mediation of emotion
Limbic System
(Forebrain)
1. Amygdala
2. Hippocampus
Amydala
(Forebrain, Limbic System)
1. attaches emotions to memories
2. integrates and directs motivational and emotional activities
3. involved in recall of emotionally-charged experiences
Bilateral lesions in Amygdala and temporal lobes can produce Kluver-Bucy Syndrome
Hippocampus
(Forebrain, Limbic System)
1. associated with learning and memory.
2. involved with processing visual, spatial, and verbal information.
3. consolidates declarative memories
Kluver-Bucy Syndrome
increased docility, hypersexuality, alterations in diet, psychic blindness caused by bilateral lesions in the Amygdala of the Limbic System.
Psychic Blindness
Inability to recognize significance or meaning of events or objects. Associated with bilateral lesions of Amygdala of the Limbic System.
Declarative Memories
Converting short-term memories to long-term. (I do declare this short is a long)
Function of the Hippocampus of the Limbic System (Forebrain)

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