15 out. Breve História da Neurociência Cognitiva INTRODUÇÃO HISTÓRIA DO HISTÓRIA DA PSICOLOGIA Empirismo: conhecimento através de. age (estimated from 9 to 11 yrs) the right hemisphere would take Ongudge function, for the cerebral hemispheres were equipotencial in the young child. Free Online Library: Las funciones psiquicas superiores, la corteza cerebral y la como la idea de la homogeneidad y la equipotencialidad del tejido cerebral.

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Lashley did not find a central place equipotenciaalidad stored memories, which suggests that stored memories are not localized but stored and retrieved in multiple areas. He spent most of his childhood alone.

Equipotentiality – Wikipedia

Retrieved from ” https: Through Lashley’s ideas of equipotentiality and the law of mass action, he is saying that the brain is functioning as a whole unit and that over all damage to the brain effects it’s over all functioning.

The cortical lesions had specific effects on acquisition and retention of knowledge, but the location of the removed cortex had no effect on the rats’ performance in the maze. Clark Anne Anastasi Leona E. Lashley was born on June 7, in the town of Davis, West Virginia. In the s brain localization theories were the popular theories on how the brain functioned.

This is no doubt what gave Lashley his love of learning. Kazdin James H.

Karl Lashley

Lashley graduated high school at age Karl Lashley worked with Donald Hebb in The Yerkes Laboratories; a lab that worked with monkeys to study various psychological concepts. This page was last edited on 10 Octoberat He has said that his father was a kind man.

From Wikipedia, the free encyclopedia. Since the area of the brain that was originally performing this function is damaged and unusable, the brain compensates and can code that information in other cererbal of the brain. Lashley contributed to psychology and neuropsychology in a number of ways.

Lashley’s father held various local political positions. Franz had already done previous work with lesions in cat brains and puzzle boxes so Lashley and Franz decided to team up and work with rats. This page was last edited on 28 Decemberat His favorite thing to do as a child was to wander through the woods and collect animals, like butterflies and mice.

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It proposes that all forms of associative learningboth classical Pavlovian and operant Skinnerian involve the same underlying mechanisms. The principle of equipotentiality is the idea that the rate of learning is independent of the combination of conditioned and unconditioned stimuli that are used in classical conditioning.

Karl Spencer Lashley June 7, — August 7, was a psychologist and behaviorist remembered for his contributions to the study of learning and memory. In this context when we use brain we are referring to the cortex.

He was the only child of Charles and Maggie Lashley. He led Lashley to understand what he wanted to do the rest of his life. After obtaining his Bachelor of Arts at West Virginia University, he was awarded a teaching fellowship at the University of Pittsburghwhere he taught biology along with biological laboratories.

The data gathered from these tend to confirm Lashley’s theories. All articles with unsourced statements Articles with unsourced statements from July Articles with unsourced statements from October He also argued that elementary sensory input was localized, which is supported by current research.

The cegebral of mass action says that the efficiency of any complex function of the brain is reduced proportionately to how much damage the brain as a whole has sustained, but not to the damage of any particular area of the brain. Lashley was a very active boy, both physically and mentally.

She brought in women from the community, whom she would teach various subjects. Bray Carol D. He was able to read by the age of four. Robert Richardson Sears J. McKeachie Theodore H.

He trained rats to perform specific tasks seeking a food rewardthen lesioned specific equipotencialjdad of the rats’ cortex, either before or after the animals received the training. Lashley’s career began with research concerning brain mechanisms and how they were related to sense receptors. He equipotencialixad at West Virginia Universitywhere he had originally intended to become an English major. A Quantitative Study of Injuries to the Brain disproved the idea of localization and brought to life the idea that the brain and its multiple parts work together for memory and other functions.


Warren Robert S. They also found that rats with lesions in a small specific area had functioning sensory systems and it seemed that when parts of the brain were damaged for a certain action, other parts of the brain were compensating so those actions could be carried out.

Lashley was also a pioneer in challenging the way we think about human and animal behavior in terms of our biology.


Lashley offered two generalizations from his research, equipotencalidad recently have been successfully challenged but nonetheless represent important milestones in the development of neurological theory:. He researched this by looking at the measurement of behavior before and cerebfal specific, carefully quantified, induced brain damage in rats.

These two principles grew out of Lashley’s research on the cortical basis of learning and discrimination. Hull Edward C. Lashley coined the term equipotentiality to define the idea that if one part of the brain is damaged, other parts of the brain will carry out the memory functions for that damaged part.

This starts to go against localization theories which would say that the brain is only functioning in specific regions and the brain’s ability to perform at any given task is only effected by the overall damage to that area of the brain and damage to an unrelated area shouldn’t affect the task. Fellows of the Royal Society elected in