AP Psychology Unit 3B
AP* Psychology for Myers, 9th edition. Vocabulary terms from Unit 3B: The Brain
Terms in this set (38)
Tissue destruction; a brain lesion is a naturally or experimentally caused destruction of brain tissue.
An amplified recording of the waves of electrical activity that sweep across the brain's surface. These waves are measured by electrodes placed on the scalp.
CT (Computed tomography) scan
A series of X-ray photographs taken from different angles and combined by computer into a composite representation of a slice through the body. Also called CAT scan.
PET (Position Emission Tomography) scan
A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task.
MRI (Magnetic Resonance Imaging)
A technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissue. Its scans show brain anatomy.
fMRI (functional MRI)
A technique for revealing bloodflow and, therefore, brain activity by comparing successive MRI scans,Their scans show brain function.
The oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; It is is responsible for automatic survival functions.
The base of the brainstem; controls heartbeat and breathing.
A nerve network in the brainstem that plays an important role in controlling arousal.
The brain's sensory switchboard, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla.
The "little brain" at the rear of the brainstem; functions include the processing sensory input and coordinating movement output and balance.
Doughnut-shaped neural system (including the hippocampus, amygdala, and hypothalamus) located below the cerebral hemispheres; associated with emotions and drives.
Two lima bean-sized neural clusters in the limbic system; linked to emotion.
A neural structure lying below the thalamus; it directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary glands, and is linked to emotion and reward.
The intricate fabric of interconnected neural cells covering the cerebral hemispheres; the body's ultimate control and information-processing center.
Glial cells (glia)
Cells in the nervous system that support, nourish, and protect neurons.
Portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgments.
Portion of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position.
Portion of the cerebral cortex lying at the back of the head; includes areas that receive information form the visual fields.
Portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear.
An area at the rear of the frontal lobes that controls voluntary movements.
Area at the front of the parietal lobes that registers and processes body touch and movement sensations.
Areas of the cerebral cortex that are not involved in primary motor or sensory functions; rather, they are involved in higher mental functions such as learning, remembering, thinking, and speaking.
Impairment of language, usually caused by left hemisphere damage either to Broca's area (impairing speaking) or to Wernicke's area (impairing understanding)
Controls language expression - an area, usually in the left frontal lobe, that directs the muscle movements involved in speech
Controls language reception - a brain area involved in language comprehension and expression; usually in the left temporal lobe
The brain's ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience.
The formation of new neurons.
The large band of neural fibers connecting the two brain hemispheres and carrying messages between them.
A condition resulting from surgery that isolates the brain's two hemispheres by cutting the fibers (mainly those of the corpus callosum) connecting them.
Our awareness of ourselves and our environment.
The interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language).
The principle that information is often simultaneously processed on separate conscious and unconscious tracks.
Giuseppe Moruzzi and Horace Magoun
discovered that electrically stimulating the reticular formation of a sleeping cat almost instantly produced an awake, alert animal. They learned that Reticular formation has to do with Arousal.
reward deficiency syndrome
Some researchers believe that addictive disorders, such as alcohol dependence, drug abuse and binge eating may; stem from this.
the two large hemispheres that contribute 85% of the brains weight.