[PSY-B 320] - Midterm Exam Guide - Comprehensive Notes for the exam (36 pages long!)

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IUPUI
PSY-B 320
MIDTERM EXAM
STUDY GUIDE
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Chapter 2 notes :
Overview of Brain Function and Structure
The rai’s priar futio is to produe ehaior. To do so, it ust:
Receive information about the world
Integrate information to create a sensory reality
Produce commands to control the movement of muscles
Finding you way around the Brain:
Many names for nervous-system structures include information about anatomical locations:
with respect to other body parts of the animal
with respect to their relative locations
ith respet to a ieer’s perspetie
Four Directions:
Dorsal: top, our head, bogs back, think of dorsal fin on a dolphin
Ventral: bottom; our feet; dogs belly
Anterior: front; our stomach, face; also called rostral
Posterior back; our butts; also called caudal
Medial: middle
Lateral: to the outside, sideways,
Coronal Section: cut in a vertical plane, from the crown of the head down, yielding a frontal
view of the brains internal structure
Horizontal Section: cut falls along the horizon is usually viewed looking down on the brain from
above
Sagittal Section: a cut lengthways from front to back and viewed from the side
Afferent information is sensory information coming into the CNS (incoming information)
(A-coming AT)
Efferent information is information leaving the CNS (outgoing information) (E-Exiting)
Hemispheres
Brain contains two almost symmetrical halves: right and left
Cerebral Cortex
Heail folded outer laer of rai tissue oposed of euros orte = ark
Gyri: bumps on the folded surface
Sulci: grooves of the cortex (Valleys are low, sulking)
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If ou ould diide the rai ito just 2 ajor parts….
Forebrain (whole outer/upper region) prominent in mammals and birds, responsible
for most conscious behaviors
Brainstem source of behavior in simpler animals, responsible for most of our
unconscious behaviors.
Four Lobes (location)
Frontal Lobe
Cortex anterior to the central sulcus and beneath the frontal bone of the skull
Parietal Lobe
Cortex posterior to the central sulcus, beneath the parietal bone at the top of
the skull
Temporal Lobe
Cortex lying below the lateral fissure, beneath the temporal bone at the side of
the skull
Occipital Lobe
Cortex at the back of the brain and beneath the occipital bone of the skull
Four Lobes of the Cerebral Cortex (function)
1. Frontal
Eeutie futios, deisio akig
2. Parietal
Integrates sensations into body coordinates
3. Temporal
Hearing, language, memory, smell, taste
4. Occipital
Visual processing
Surface Features of the Brain
Meninges: Three layers of protective tissue
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