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Brain and Behavior Chapter 1 Vocabulary
David Fraiser NROSCI 0080
51
Science
Undergraduate 1
05/20/2009

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Term
hemisphere
Definition
referring to one side of the cerebral cortex or the cerebellum
Term
cerebral cortex
Definition
outer layer of brain tissue surface composed of neurons
Term
sulci
Definition
grooves or cracks in the cerebral cortex
Term
gyri
Definition
bumps on the cerebral cortex
Term
temporal lobe
Definition
cortex lying below the lateral fissure
Term
frontal lobe
Definition
cerebral cortex anterior to the central sulcus
Term
occipital lobe
Definition
cerebal cortex at the back of the brain
Term
neurons
Definition
specialized cells engaged in information processing
Term
spinal cord
Definition
part of the central nervous system (CNS) encased within the verebrae or spinal column
Term
central nervous system (CNS)
Definition
the brain and the spinal cord
Term
peripheral nervous system (PNS)
Definition
all the neurons located outside the brain and spinal cord
Term
sensory neuron
Definition
neuron that carries incomming information from sensory receptors into the brain and spinal column
Term
motor neuron
Definition
neuron that carries information from the spinal cord and brain to make muscles contract
Term
parietal lobe
Definition
cerebral cortex posterior to the central sulcus
Term
hemisphere
Definition
meaning "half a sphere"
Term
cerebral cortex
Definition
part of the brain composed of many folds of neurons
Term
temporal lobe
Definition
cortex lying beneath the temporal bone
Term
temporal lobe
Definition
designated as the THUMB when making a fist to represent the brain
Term
frontal lobe
Definition
lobe located beneath the frontal bone of the skull
Term
frontal lobe
Definition
designated as the FINGERS when making a fist
Term
occipital lobe
Definition
lobe of the brain located beneath the occipital bone
Term
occipital lobe
Definition
designated as the WRIST when making a fist to represent the brain
Term
parietal lobe
Definition
beneath the parietal bone at the top of the skull
Term
parietal lobe
Definition
designated as the KNUCKLES when making a fist to represent the brain
Term
psyche
Definition
synonym for mind
Term
psyche
Definition
an entity once proposed to be the source of human behavior
Term
mind
Definition
proposed nonmaterial entity responsible for intelligence, attention, awareness, and consciousness
Term
mentalism
Definition
an explanation of behavior as a function of the nonmaterial mind
Term
mentalism
Definition
meaning "of the mind"
Term
mind-body problem
Definition
quandary of explaining a nonmaterial mind in command of a material body
Term
dualism
Definition
philosophical position that holds that both a nonmateiral mind and a material body contribute to behavior
Term
materialism
Definition
philosophical position that holds that behavior can be explained as a function of the nervous system without explanatory recourse to the mind
Term
natural selection
Definition
Darwin's theory for explaining how new species evolve and existing species change over time
Term
natural selection
Definition
differential success in the reproduction of different characteristics (phenotypes) results from the interaction of organisms with their environment
Term
species
Definition
group of organisms that can interbreed
Term
common ancestor
Definition
forebear from which two or more lineages or family groups arise and so is ancestral to both groups
Term
cerebellum
Definition
major structure of the hindbrain specialized for motor coordination. In large-brained animals, it may also have a role in the coordination of other mental processes
Term
hominid
Definition
general term referring to primates that walk upright, including all forms of humans, living an extinct
Term
inherited behavior
Definition
part of the evidence supporting Darwin's suggestion that emotional expression is inherited is the finding that people from all parts of the world display the same emotional expressions
Term
cladogram
Definition
phylogenic tree that brances repeatedly, suggesting a classification of organisms based on the time sequence in which evolutionary branches arise
Term
nerve net
Definition
simple nervous system that has no brain or spinal cord but consists of neurons that receive sensory information and connect directly to other neurons that move muscles
Term
bilateral symmetry
Definition
body plan in which organs or parts present on both sides of the body are mirror images in apperance
Term
ganglia
Definition
collection of nerve cells that function somewhat like a brain
Term
chordates
Definition
group of animals that have both a brain and spinal cord
Term
homeobox gene cluster
Definition
a group of genes that specify the segmental organization of the nervous system of insects and vertebrates and so are thought to have arisen in a common ancestor to these lineages
Term
segmentation
Definition
division into a number of parts which are similar; refers to the idea that many animals, including vertebrates, are composed of similarly organized body segments
Term
encephalization quotient (EQ)
Definition
Jerison's measure of brain size obtained from the ratio of actual brain size to the expected brain size, according to the principle of proper mass, for an animal of a particular body size
Term
radiator hypothesis
Definition
idea that selection for improved brain cooling through increased blood circulation in the brains of early hominids enabled the brain to grow larger
Term
species-typical behavior
Definition
behavior that is characteristic of all members of a species
Term
neoteny
Definition
process in which maturation is delayed and so an adult retains infant characteristics; idea derived from the observation that newly evolved species resemble the young of their common ancestors
Term
culture
Definition
learned behaviors that are passed on from one generation to the next through teaching and learning
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