The brain?s ability to change in response to experience
The brain?s ability to store and access the learned effects of experience
Any pathological loss of memory
Bilateral Medial Temporal Lobectomy
The removal of the medial portions of both temporal lobes including the hippocampus, amygdala and adjacent cortex.
A structure of the medial temporal lobes that plays a role in memory for spatial location
Operation in which a lobe is separated from the rest of the brain
Structure in the anterior temporal lobe, just anterior to the hippocampus; plays a role in emotion
Inability to recall things prior to the episode
Inability to form new memories since the episode
Short Term Memory
The capacity for holding a small amount of information in mind in an active, readily available state for a short period of time
The number of digits (numbers) one can remember
Digit Span + 1 Test
HM failed this test. People can normally repeat 15 digits after 25 digit span + 1 trials
Block-Tapping Memory-Span Test
9 blocks spread out on a board. Repeat a sequence. HM could do 5 block sequences but not 6
HM was within normal range of 5.
Amnesia for info presented in all sensory modalities
Block-Tapping Memory Span Test
Assesses visuo-spatial short term working memory. It involves mimicking a researcher as he/she taps a sequence of up to nine identical spatially separated blocks.
Like the straw drawing test we did. HM did not have problem with all long term memory. Over a three day set of trials, he got better at the drawing task, even though he could not remember performing the task the days before
Try to keep the stylus on the revolving turntable. . Over a 9 day set of trials, he got better at the task, even though he could not remember performing the task the days before
HM was capable of forming long term with the incomplete picture task. Presented five sets of fragmented drawings then progresses to showing more and more of the completed picture.
memory that is serviceable for events long past, but not able to acquire new recollections
Transfer of short-term memory to long-term memory
Medial Temporal Lobe Amnesia
Medial temporal lobe damage
Repetition Priming Tests
Tests that have been developed to assess implicit memory (incomplete picture test is an example)
Knowledge based memory
Personal memories or particular events
SAME AS EPISODIC
Have experienced an interruption of blood supply to their brain
Pyramidal Cell Layer
a type of neuron found in areas of the brain including cerebral cortex, the hippocampus, and in the amygdala. Pyramidal neurons are the primary excitation units of the mammalian prefrontal cortex and the corticospinal tract.