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.
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.
How did Lashley explain the fact that rats whose brains he purposely damaged after they learned a route through a maze experienced no inhibition in their ability to find their way through the maze?
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 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.
What did Lashley develop?
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 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.
What did Karl Lashley conclude about the engram?
Summary. Beginning with Karl Lashley, researchers and psychologists have been searching for the engram, which is the physical trace of memory. Lashley did not find the engram, but he
did suggest that memories are distributed throughout the entire brain rather than stored in one specific area
.
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.
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.
What is one explanation for why Lashley failed at finding the Engram group of answer choices?
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.
Are long-term memories stored as a single entity?
-Long-term memory can last for decades. -Most long-term memories are stored as a
single entity
. -Our minds present long-term memories to us as a single entity, but the memory is actually stored in many pieces.
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.
What did Lashley’s studies demonstrate?
Lashley’s Research. If each
part of the nervous system stores memories of its own role in neural activity
, this may help explain a famous series of experiments that baffled psychologists in the 1930s and 1940s. … Lashley concluded that memories had to be spread all over the brain, throughout all the tissue.
What are the 3 foods that fight memory loss?
- Green leafy vegetables. Of all the brain-healthy food groups, green leafy vegetables provide the greatest protection from cognitive decline. …
- Other vegetables. …
- Nuts. …
- Berries. …
- Beans. …
- Whole grains. …
- Fish.
- Poultry.
What are the 10 warning signs of dementia?
- Sign 1: Memory loss that affects day-to-day abilities. …
- Sign 2: Difficulty performing familiar tasks. …
- Sign 3: Problems with language. …
- Sign 4: Disorientation in time and space. …
- Sign 5: Impaired judgement. …
- Sign 6: Problems with abstract thinking. …
- Sign 7: Misplacing things.
What are the 5 worst foods for memory?
- Processed cheeses, including American cheese, mozzarella sticks, Cheez Whiz and Laughing Cow. …
- Processed meats, such as bacon, smoked turkey from the deli counter and ham. …
- Beer. …
- White foods, including pasta, cakes, white sugar, white rice and white bread.
