Cognition Flashcards
What is meant by “intellectual capacity”?
Perception
Cognitive Ability
Memory
Learning
- awareness and interpretation of stimuli
- the ability of the individual to interpret the environment
- dependent on the acuteness of senses
- affected by impairment of senses
Perception
- intellectual skills or thought processes that include problem solving, decision making, critical thinking and creativity
- with aging this may not be as fast
Cognitive Ability or Skills
- the power or process of remembering what has been learned
- involves several steps
Memory
- the activity or process of gaining knowledge or skill by studying, practicing, being taught, or experiencing something : the activity of someone who learns
- additional time required as we age
- motivation is important
Learning
-momentary perception of stimuli from the environment
Sensory Memory
-information held in the brain for immediate use or what one has in mind at a given moment
Immediate or Short Term Memory
-memory that deals with the recent past few minutes or hours
Short Term Memory or Recent Memory
- repository for information that is stored for periods longer than 72 hours (and usually for weeks or years)
- has left short term and is encoded
Long Term Memory
What are some normal age-related changes that may occur with regard to cognition?
- information processing speeds decline with age (results in slower learning rate, more repetition needed etc)
- ability to divide attention between two tasks declines
- ability to switch between auditory inputs declines
- ability to maintain attention declines
- ability to perform vigilance tasks declines
- ability to filter out irrelevant information declines
- accessing long term memory takes longer
- word finding, naming ability, generating word lists decline
- drawing and construction ability declines
- abstraction and mental flexibility decline
What are some methods for coping with age related cognitive changes?
- lists
- notes to self
- memory training
- memory enhancement techniques
- computer games that emphasize eye-hand coordination or memory
- keeping mentally active by challenging mind (reading, crossword puzzles, playing bridge etc)
- using assistive devices (pill boxes, preprogrammed phones etc)
- cultivate habits (park in same place every day etc)
- seek support and encouragement
- stay positive and hopeful for future
What are some pediatric learning disabilities?
Dyslexia (writing, reading, spelling)
Dyscalculia (math and computation)
Dysgraphia (writing, spelling, composition)
Dyspraxia (manual dexterity and coordination)
- significant limitation in intellectual functioning and adaptive behaviour
- manifested in differences in conceptual, social and practical life skills
- begins before the age of 18
- has deficits in adaptive functioning in at least 2 areas
Mental Retardation
-ability of an individual to meet the standards expected for his or her cultural group
Adaptive Functioning
-any of a variety of chronic conditions that are characterized by mental and/or physical impairment
Developmental Disability
What are the three general categories for mental retardation?
1) Prenatal errors in development of CNS
2) Prenatal or Postnatal changes in the biological environment of the person
3) external forces leading to CNS damage
What are the three most common conditions related to Prenatal causes of mental retardation?
1) Down Syndrome
2) Fragile X Syndrome
3) Fetal Alcohol Syndrome
- condition caused by an extra chromosome (47 rather than 46)
- at higher risk for developing cardiac defects, hearing loss, strabismus, GI problems, orthodontic conditions, thyroid disease, dermatologic conditions, and leukemia
- physical characteristics associated
Down Syndrome
- condition caused by a single recessive gene abnormality on the X chromosome
- often associated with ADHD, anxiety and autism
Fragile X Syndrome
- condition caused by the effects of ethyl alcohol on the developing fetus
- wide range of effects from the disorder
- higher rate in Alaskan Natives and Native Americans
Fetal Alcohol Syndrome (or Fetal Alcohol Spectrum Disorder)
What are some of the different types of dementia?
Alzheimer’s Disease (60%)
Multi-Infarct Dementia (5-20%)
Mixed Alzheimer’s & Multi-Infarct Dementia
Non-Alzheimer’s Dementia: Parkinson’s Disease, AIDS related, Pick’s Disease (<15%)
What conditions may mimic dementia?
Age Related Cognitive Decline
Mild Cognitive Impairment
Delirium
Depression
What differentiates Delirium from Dementia?
- dementia sets on gradually while delirium has a sudden or acute onset
- dementia is irreversible, while delirium is reversible
- dementia has consistent deterioration while delirium fluctuates
- with dementia hallucinations are not prominent, but with delirium auditory, visual or tactile hallucinations occur
- dementia patients are more often disinterested/disinhibited, while delirious patients are anxious and fearful, angry, irritable, depressed
What differentiates Alzheimer’s Disease from Normal Aging?
AD = inability normal aging = difficulty
- AD affects recent and remote memory, while normal aging affects recent memory
- with AD there is an inability to recall people/names/places, while with normal aging it is just difficult
- AD has inability to concentrate, normal aging shows a decreased ability
- AD lacks ability to write, nothing stimulates memory, while with normal aging notes to self helps to stimulate memories
- AD inability to function at work/socially/home, while with normal aging changes do not interfere with daily functioning
- with AD the individual has no idea changes have occurred, with normal aging there is an awareness that forgetful behaviour is present
What differentiates Depression from Alzheimer’s Disease?
- AD has insidious onset, depression is rapid onset
- AD has slow progression, depression has fast progression
- AD has difficulty with recall, depression has memory intact
- AD uses confabulation, someone with depression often answers “don’t know”
- AD has impaired attn span, depression pt has normal attn span
- AD cannot recognize people/places, depression pt is oriented to person/time/place
- AD pt struggles with ADLs and gets frustrated, depression pt is apathetic about ADLs
-the process of learning, storing, retrieving and using information
Cognition
- believed cognition was an orderly process
- 4 major phases (sensorimotor, preoperational, concrete operational, formal operational)
- theory has limitations
Piaget
Piaget is one of the main cognitive theorists, what are the other two we have looked at?
Vygotsky
Information processing theory