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53 Cards in this Set

  • Front
  • Back
Agents of balanced anesthesia
sedative, anesthesia, muscle relaxant, analgesia
Clinical assessment of consciousness
MAC (potency of inhaled anesthetic), PRST (autonomic nervous system index of consciousness), Central nervous system indices (ERPs = abolish late components; EEG power spectrum = keep between 2-3 Hz); BIS/bispectral index (computerized version of EEG, algorithm)
Glasgow Coma Scale (what's it based on?)
eye, verbal, motor response, best response patient can make
What's damaged in coma?
posterior brain stem
What measures muscle relaxation?
EMG (electromyogram)
What measures eye movements?
EOG (electrooculogram)
Stage 2 sleep
spindles, K-complexes
Stage 1 descending
alpha disappears, muscle relaxation, SREM, denial of sleep on awakening
Stage 3
appearance of delta activity, hard to wake
Stage 4
dominance of delta activity, awaken groggy
REM
no alpha activity, extreme muscle relaxation, rapid-eye movements, higher heart rate, awaken alert
Hypnagogic reverie
imagery in descending stage 1, myoclonic jerk
Hypnopompic reverie
ascending stage 1, sleep paralysis, static imagery
Night terrors
stages 3,4; return to peaceful sleep, no memory upon awakening
Nightmare
stage REM
Somnambulism
sleepwalking; stage NREM (unparalyzed)
Somniloguy
sleeptalking; REM (concordant with dream contexts, good semantic and syntax) or NREM (discordant with dream, aphasic)
Wyatt study
amnesia for items presented in minutes immediately preceding sleep onset
Dreaming in stage REM vs. NREM
Foulkes: either; actually, REM
Freud
dreams have hidden meanings, symbolically representing in repressed unconscious thoughts and memories
AIM Model of consciousness
3 elements to produce consciousness: cortical activation (level of alertness), input-output gating (input source internal vs. external), modulation (between aminergic neurons and cholinergic neurons)
-->dreams are meaningless
AIM and waking
high activation, external information, aminergic > cholinergic
AIM and NREM
low activation, internal information, aminergic = cholinergic
AIM and REM
high activation, internal information, cholinergic > aminergic
Foulkes
dreams are a form of thinking, random samples of the mind of the dreamer; during REM and NREM
Dormhoff
dreaming is an achievement marking a certain stage of cognitive development
Norman Malcolm
the concept of dreaming really refers to the impressions and the reports of having dreamt, which occur immediately after awakening from sleep, not during sleep
Dennett
library of undreamed dreams in the brain, no conscious experience happening during sleep, just the unconscious insertion of a dream recollection into memory
Activation-synthesis theory
dream consciousness is seen as a disorganized and deficient form of consciousness
Theories about why we dream
side-effect of neuronal activities, solves problems, mental health, simulation of world to practice
Dissociative disorders
disruption in consciousness affecting patient's awareness of memory/identity; impairs explicit memory
Psychogenic amnesia
person cannot remember a certain period of life
psychogenic fugue
forgets part of life and who he/she is, also affects semantics
multiple personality disorder (dissociate identity disorder)
switches between identities
Depersonalization
experiences himself as different
Derealization
experiences world as different
Conversion disorders
disruption in consciousness affecting the patient's sensory and perceptual awareness, or ability to engage in voluntary motor activity (cannot feel, see, hear despite nothing wrong with nervous system); reversible
4 criteria to distinguish between altered states of consciousness
induction procedure, subjective experience, overt behavior, psychophysiological indices
Views of development of consciousness
Phylogenetic: evolution of a trait across species
Ontogenetic: emergence of a trait within an individual
Cultural
Descartes
animals behave due to unconscious, involuntary reflexes; humans have souls/free will/mind (highest stage of development)
Darwin
natural selection also applies to mental state, we can find qualities of humans in "higher" animals
Romanes
extends intelligence down to nonhuman animals (anecdotal evidence) (improbable that the body is continuous across species but not the mind)
Morgan
conservative about the attribution of mind to nonanimals
Washburn
we can draw analogies from humans to animals, criteria for attribution of mind to animals: anatomical resemblance to humans, rapid learning
Watson
consciousness and intelligence play no role in animal behavior --> humans this way also
Griffin
3 considerations for determining consciousness: complexity of behavior, similarity of nervouse systems, functionality of consciousness
Anonsognosia
unawareness of deficit (brain refuses to update the self-representation appropriately)
Asomatognosia
patient denies ownership of a limb
Capgras delusion
families faces do not elicit emotional reaction, makes the patient believe that people have been switched with identical doubles
Fregoli
almost all faces elicit strong, specific emotional reaction --> significant person is following around in different disguises
left hemisphere roles
self-representation, explanations about ourselves; construct an internally coherent narrative of all the experiences and behaviors of the person
right hemisphere
critically examine and question the narratives; damage --> confabulates
Lloyd Morgan's canon
we should not attribute mental activity to animals if simpler explanations will do