Lashley concluded that memories had to be spread all over the brain, throughout all the tissue.
How did Karl Lashley test the memory of rats whom he had trained to solve a maze?
After Karl Lashley trained rats to solve a maze, he removed pieces of their cortex. He reported that, no matter what part of the cortex was removed, the rats retained partial memory of how to solve the maze.
What did Lashley find?
By implanting insulating chips of mica in rats’ cortexes and showing that they had few effects on learning and behavior, he established that (contra to Gestalt theories of the era) the cortex processed information in the pattern of activity and connectivity among neurons, not in global field and wave effects …
What did Lashley conclude about the location of the brain’s memory center?
Lashley failed to find the engram”his experimental animals were still able to find their way through the maze, no matter where he put lesions on their brains. He therefore concluded that memories are not stored in any single area of the brain, but are instead distributed throughout it.
When you combine the research findings of Karl Lashley?
When you combine the research findings of Karl Lashley and Richard Thompson, the findings suggest that: simple memories may be localized in specific areas, but complex memories seem to be distributed throughout the brain.
What did Lashley develop by purposely damaging?
How did Lashley develop the equipotentiality hypothesis? He trained rats in the correct route through a maze, then deliberately damaged their brains and observed that this did not inhibit their progress through the maze.
What things affect memory most?
Which part of my brain is probably damaged?
The part of the brain that is affected when one is unable recognize basic objects around the house is Hippocampus. The Hippocampus is part of the limbic system in the brain responsible for emotions and memory, specifically long-term memory.
Where is memory stored in the brain?
The hippocampus, located in the brain’s temporal lobe, is where episodic memories are formed and indexed for later access.
What does the Equipotentiality hypothesis?
n. 1. Karl S. Lashley ‘s hypothesis that large areas of cerebral cortex have similar potential to perform particular functions, including learning and other complex processes (e.g., maze navigation), so that intact cortical areas may take over functions of damaged or destroyed areas.
What part of the brain controls emotions?
The prefrontal cortex is like a control center, helping to guide our actions, and therefore, this area is also involved during emotion regulation. Both the amygdala and the prefrontal cortex are part of the emotion network.
Why do we forget?
The inability to retrieve a memory is one of the most common causes of forgetting. … According to this theory, a memory trace is created every time a new theory is formed. Decay theory suggests that over time, these memory traces begin to fade and disappear.
What part of the brain controls memory and learning?
Hippocampus. A curved seahorse-shaped organ on the underside of each temporal lobe, the hippocampus is part of a larger structure called the hippocampal formation. It supports memory, learning, navigation and perception of space.
Why did Karl Lashley fail to find evidence for the specific location of the Engram?
He did this because he was trying to erase the engram, or the original memory trace that the rats had of the maze. Lashley did not find evidence of the engram, and the rats were still able to find their way through the maze, regardless of the size or location of the lesion.
Is memory localized or distributed quizlet?
memory is distributed across a network of interconnected units that work simultaneously (in a parallel fashion) to process information.
How did Lashley develop the Equipotentiality?
How did Lashley develop the equipotentiality hypothesis? He trained rats in the correct route through a maze, then deliberately damaged their brains and observed that this did not inhibit their progress through the maze. Giorgio memorizes the German poem “The Erlking” to recite in his eighth grade German class.