B1-Origins of Behavioral Neuroscience Flashcards
Split-Brain operation
Brain surgery that is occasionally performed to treat a form of epilepsy; the surgeon cuts the corpus callosum, which connects the two hemispheres of the brain
Corpus Callosum
A large bundle of nerve fibers that connect corresponding parts of one side of the brain with those of the other
Cerebral hemispheres
The two symmetrical halves of the brain; they constitute the major part of the brain
Generalization
Type of scientific explanation; a general conclusion based on many observations of similar phenomena
Reduction
Type of scientific explanation; a phenomenon is described in termed of the more elementary processes that underlie it
Reflex
An autonomic stereotypes movement produced as the direct result of a stimulus
Model
A mathematical or physical analogy for a physiological process; for example, computers have been used as models for various functions of the brain
Doctrine of specific nerve energies
Müller’s conclusion that because all nerve fibers carry the same type of message, sensory information must be specifies by the particular nerve fibers that are active
Experimental ablation
The research method in which the function of a part o the brain is inferred by observing the behaviors an animal can no longer perform after that part is damaged
Functionalism
The principle that the best way to understand a biological phenomenon (a behavior or a physiological structure) is to try to understand its useful functions for the organism
Natural selection
The process by which inherited traits that confer a selective advantage (increase an animal’s likelihood to live and reproduce) become more prevent in the population
Evolution
A gradual change in the structure an physiology of plant and animal species-generally producing more complex organisms-as a result of natural selection
Mutation
A change in the genetic information contained in the chromosomes of sperm or eggs, which can be passed on to an organism’s offspring; provides genetic variability
Selective advantage
A characteristic of an organism that permits it to produce more than the average number of offspring of its species
Neoteny
A slowing of the process of maturation, allowing more time for growth, an important factor in the development of large brains