Chapter 16 Flashcards
Amnesia
A specific, sudden loss of memory functions that may not include other significant cognitive deficits
Dementia
A slow loss of cognitive skills due to a disease process, which includes loss of memory
Anterograde amnesia
Difficulty creating new memories
Retrograde amnesia
Loss of access to events that occurred in the past
Dementia is most common in ____ disease, which accounts for over 50% of all dementia cases
Alzheimer’s
Retrograde amnesia is often ____-graded, which means…
Temporally; old memories (from further in the past) are more likely to be preserved while more recent memories (closer to the time of injury/event) are more likely to be lost.
What does the study by Beatty et al. illustrated that the rate of correct response of ____-____ ____ (M.R.L.) participants ____ significantly over the decades while it stayed roughly the same for ____ participants.
memory-retrieval limited; dropped; control
In patients with retrograde amnesia, events can be assessed using “____ ____”: recalled from different periods of life with ____ that reference common ____, and then evaluated for ____ and ____, a method resistant to ____
autobiographical interview; prompts; experiences; specificity; detail; confabulation
In the study by Kopelman, Wilson, and Baddeley (1990), the mean score of ____ ____ memory and ____ incidents for amnesic patients ____ as the events gets more ____ compared to more early in life, which is the opposite to healthy controls
personal semantic; autobiographical; decreased; recent
Graf, Squire, and Mandler (1984) tested memory in multiple groups with amnesia using ____ and ____ tasks, and made them complete either a ____ or a word ____ test. They found that…
shallow (decide whether pais of words shared a vowel); deep (each word was rated based on how much the participant liked it); recall; completion; deep tasks yielded more response than shallow tasks, while word completion tests yielded more responses on average
Cohen and Squire (1980) taught a group of people with amnesia to read mirror writing. They found that ____ groups show learning of backward reading skill, but ____ groups showed very ____ memory for items.
all; amnesic; little
characteristics of Post-Traumatic amnesia
- Difficulty forming memories after a head injury
- Recover sequence: personal knowledge > place > time
- Estimates of time may be incorrect by up to five years; error becomes smaller over course of recovery
- Can also be seen after head injuries that do not cause a loss of consciousness
In the study by Yarnell and Lynch (1970), ____ American football players could remember play that resulted in tackle initially, but between ____ and ____ minutes later, players experienced ____
dazed; three; twenty; amnesia
Retrograde amnesia can be explained by a lack of ____
consolidation
older memories become more stable and resistant to disruption over time as they are transferred from short-term storage in the hippocampus to long-term storage in other parts of the brain, such as the neocortex
People with ____ amnesia lack the neural systems required to ____ memories, while ____ ____ ____ (TBI) could also prevent successful ____ in long-term memory
hippocampal; consolidate; traumatic brain injury; consolidation