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The Brain
M 4
25
Psychology
Not Applicable
09/06/2013

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Cards

Term
Lesion
Definition
Tissue destruction, A brain lesion is a naturally or experimentally caused destruction of brain tissue.
Term
Brainstem
Definition
The oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; the brain stem is responsible for automatic survival functions.
Term
Medulla
Definition
The base of the brain stem; controls heart beat and breathing.
Term
Thalamus
Definition
The brain's sensory router,located on top of the brainstem; it directs messages to the sensory receiving area in the cortex and transmits replies to the cerebellum and medulla
Term
Reticular Formation
Definition
A nerve network that travels through the brainstem and plays an important role in controlling arousal
Term
Position Emission Tomography (PET) Scan
Definition
A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task
Term
Magnetic Resonance Imaging (MRI)
Definition
A technique that usus magnetic fields and radio waves to produce computer-generated images of soft tissue. MRI scans show brain anatomy
Term
Electroencephalogram (EEG)
Definition
An amplified recording of the waves pf electrical activity seeping across the brain's surface. These waves are measured by electrodes places on the scalp
Term
functional MRI (fMRI)
Definition
A technique for revealing bloodflow and therefore brain activity by comparing successive MRI scans.
Term
Cerebellum
Definition
the "little brain" at the rear of the brainstem; function include processing sensory output and balance, and enabling nonverbal learning and memory
Term
Limbic System
Definition
neural system located below the cerebral hemispheres; associated with emotions and drives. Contains hippocampus, amygdala, hypothalamus
Term
Amygdala
Definition
two lima-bean sized neural clusters in the limbic system; linked to emotion
Term
Hypothalamus
Definition
A neural structure below the thalamus; it directs several maintenance activities such as eating, drinking, and body temperature, and helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward
Term
Cerebral Cortex
Definition
The intricate fabric of interconnected neural cells covering the cerebral hemispheres; the body's ultimate control and information-processing center.
Term
Frontal Lobes
Definition
Portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgements.
Term
Parietal Lobes
Definition
Portion of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position.
Term
Occipital Lobes
Definition
Portion of the cerebral cortex lying at the back of the head; includes areas that receive information from the visual fields
Term
Temporal Lobes
Definition
Portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear
Term
Association Areas
Definition
Ares of the cerebral cortex that area not involved in primary motor or sensory functions; rather they are involved in higher mental functions such as learning, remembering, thinking, and speaking.
Term
Sensory Cortex
Definition
Registers and processes body touch and movement
Term
Motor Cortex
Definition
Voluntary movements
Term
Plasticity
Definition
The brain's ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience.
Term
Neurogenesis
Definition
The formation of new neurons
Term
Corpus Callosum
Definition
The large band of neural fibers connecting the two brain hemispheres and carrying messages between them
Term
Split Brain
Definition
A condiution resulting from surgery tht isolates the brain's two hemispheres by cutting the fibers (mainly of the corpus callosum) connecting them
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