How can we help?

You can also find more resources in our Help Center.

40 terms

PSY 200 CH. 2-2

Casey Carlton's PSY 200 at J Sarge Notes 2-2
STUDY
PLAY
Techniques for Studying the Brain
Brain Lesioning, EEG, Brain Imaging, Trans cranial Magnetic Stimulation (TMS)
EEG
Measures electrical activity in the brain. A drawback is that it's not within the brain, only the outer layer.
Brain Lesioning
Lesion or damage part of the brain and see what abilities the individual loses. (animals)
Types of Brain Imaging
CT Scans, PET Scans, MRI Scans, Functional MRI (fMRI)
CT Scans
X-ray of the brain that provides a 3-D picture showing structure (doesn't show function) (Drawback: radiation exposure)
PET Scans
Trace the glucose consumption in the brain; relates to brain activity (function)
MRI Scans
(Magnetic resonance imaging) generally shows structure. Draw on the magnetic properties in the body. (structure)
Functional MRI (fMRI)
Series of MRI's in rapid succession (function)
Trans cranial Magnetic Stimulation (TMS)
Creates a virtual lesion deactivating a part of the brain but only temporarily; newer technique, not brain imaging, a safe way to carry out brain liesoning
Hindbrain and Midbrain
The lower parts that are responsible for more life sustaining functions.
Parts of the Brainstem
Medulla, Pons, Reticular Formation
Medulla
Breathing and heart rate (Magic Medallion)
Pons
How alert you are, influences sleep (like a coma);
Reticular Formation
Plays a role in attention to sudden changes (ADD)
Cerebellum
All voluntary movement; coordination (bell; triangular dinner bell)
The Forebrain
The most forward part of the brain and is considered the higher part of the brain and generally responsible to higher functions
Parts of the Limbic System
Amygdala, Hippocampus (important for memory and emotions)
Amygdala
related to experience of our emotions, especially survival emotions (anger, fear, aggression) (Amy; girls have emotions)
Hippocampus
Responsible for the formation of memories (elephants & hippos because they have a good memory)
Thalamus
Part of the brain sensory relay station; sensory (except smell) info goes through here first and then directed to other parts of the brain (operator receiving and directing calls)
Basal Ganglia
Involved in voluntary movements like habitual movements such as walking, typing, writings, etc.
Hypothalamus
Influences hunger, indirectly controls hormones; controls and influences hormones because it controls the pituitary glands (hunger & hormones)
The Cerebral Cortex
What sets humans apart from other animals; the outer layer of the brain; very integrated and always sharing information; divided into 2 hemispheres and 4 lobes
NeoCortex
The outermost part of the cerebral cortex making up 80% of the human brain's cortex
4 Lobes of the Brain
Occipital Lobe, Temporal Lobe, Frontal Lobe, Parietal Lobe
Occipital Lobe
Primarily processes VISUAL information (visual cortex; responsible for the initial processing of visual information) (optical,eye,visual)
Temporal Lobe
Processes LANGUAGES in general and contains the auditory cortex (initial processing of auditory information)
Frontal Lobe
In the front; planning, decision making, responsible for conscious thought
Prefrontal Cortex
Highest mental functions possible
Parietal Lobe
Processes space location; (clapping, moving around) where you are in space. Helps navigate where things are and how to get places; processes touch information
Somatosensory Cortex
Processes information about body sensations
Motor Cortex
Processes information about voluntary movement
Association Areas
Throughout the cerebral cortex; integrates information (recognizes sounds and then deciding what to do)
Corpus Callosum
Thick band of fibers connecting the hemispheres and allows for constant information.
Split Brain Research
Severs the Corpus Callosum (treatment for server epilepsy)
Left Hemisphere
Language, Broca's Area, Wernicke's Area
Broca's Area
Important role in the production of speech (Tan suffered from Aphasia)
Wernicke's Area
Important role in the comprehension of speech.
Right Hemisphere
More involved in spatial perception, emotions, visual recognition
Integration of Function
All parts of the brain are working together simultaneously