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 did Lashley discover physical basis of memory?
Lashley concluded that
memories had to be spread all over the brain, throughout all the tissue
.
How did Lashley develop Equipotentiality hypothesis?
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.
What did Lashley find when he removed parts of the brain?
Lashley found that when he removed parts of the brain:
The amount of tissue removed was more important than its location
. The cerebellum’s role in memories may be limited to what kind of learning or memory? … Impaired explicit memory, but not implicit memory.
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 Karl Lashley discover in 1920s?
Lashley pioneered
experimental work conducted on rats with surgically induced brain lesions
, by damaging or removing specific areas of a rat’s cortex, either before or after the animals were trained in mazes and visual discrimination.
What did Karl Lashley find out about memories?
Karl Lashley, one of the world’s foremost brain researchers, tried to locate the area in the brain where engrams or memory traces
Who is most likely to develop Korsakoff’s syndrome?
It is not known why some very heavy drinkers develop dementia or Wernicke-Korsakoff syndrome while others do not. Diet and other lifestyle factors may play a role. These conditions most commonly affect
men over the age of 45
with a long history of alcohol abuse, though men and women of any age can be affected.
Which part of my brain is probably damaged if I am unable to recognize basic objects around my house?
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.
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?
- Lack of sleep. Not getting enough sleep is a major factor of memory loss and forgetfulness. …
- Stress and anxiety. Everyone experiences a certain amount of stress and anxiety. …
- Depression. …
- Thyroid problems. …
- Vitamin B12 deficiency. …
- Alcohol abuse. …
- Medication.
Which type of long term memory is memory of general knowledge?
Declarative memory
and procedural memory are the two types of long-term memory. Procedural memory consists of how to do things. Declarative memory consists of facts, general knowledge, and personal experiences.
Which of the following is an example of visual encoding?
Visual Encoding refers to the process by which we
remember visual images
. For example, if you are presented a list of words, each shown for one second, you would be able to remember if there was a word that was written in all capital letters, or if there was a word written in italics.
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.
Where does short term memory receives information from?
Short-term memory (STM) is a temporary storage system that processes incoming sensory memory
