Section 3 Flashcards
Functional magnetic resonance imaging (FMRI)
Uses magnetic detectors outside the head to compare the amounts of hemoglobin with and without oxygen in different brain areas.
Hormone
Chemicals released by glands and conveyed by the blood to alter activity in various organs.
Central Nervous System
The brain and the spinal cord, communicates with the rest of the body by the Peripheral Nervous System.
Peripheral Nervous System
Nerves connecting the spinal cord with the rest of the body.
Hemisphere
Left & Right.
Controls sensation and movement on opposite side of the body.
What are the 4 lobes?
Occipital, Parietal, Temporal, & Frontal
Occipital Lobe
At the rear of the head, is specialized for vision.
Blindsight
The ability to point to or otherwise indicate the direction to a visual stimulus, without conscious perception of seeing anything at all.
Temporal Lobe
Located towards the left & right side of the head, is the main area for hearing & certain aspects of vision.
Amygdala
A structure in the temporal lobe, responds strongly to emotional situations.
Parietal Lobe
Anterior (forward) from the occipital lobe, is specialized for the body senses, including touch, pain, temperature, & awareness of the location of body parts in space.
Primary Somatosensory Cortex
A strip in the anterior portion of the parietal lobe, has cells sensitive to touch in different body areas.
Frontal Lobe
At the anterior (forward) pole of the brain, includes the Primary Motor Cortex, important for controlling fine movements, such as moving a finger or wiggling a toe.
Prefrontal Cortex
Anterior sections of the frontal lobe.
Memory of what just happened and what you are planning to do next. Also critical for decision making.
Mirror Neurons
Found in several brain areas, but especially the frontal cortex.
Active when you make a movement & also when you watch someone else make a similar movement.
Corpus Callosum
A set of axons that connect the left & right hemispheres of the Cerebral Cortex.
Epilepsy
A condition in which cells somewhere in the brain emit abnormal rhythmic, spontaneous impulses.
Magnetoencephalograph (MEG)
Records magnetic changes.
Hypothalamus
Located just below the thalamus.
Hunger, thirst, temperature regulation, sex, and other motivated behaviors.
Positron emission tomography (PET)
Records radioactivity of various brain areas emitted from injected chemicals.
Pons and Medulla
Which two characteristics controls the muscles of the head (for chewing, swallowing, breathing, and talking).
Spinal Cord
Controls the muscles from the neck down. Also controls many reflexes such as the knee-jerk reflex.
Reflex
A rapid, automatic response to a stimulus, such as taking your hand off of a hot stove.
Cerebellum
(Little brain) part of the hindbrain, responsible for ably behavior that requires aim or timing, such as taping out a rhythm.
