Perception, consciousness, sleep, memory and associative learning Flashcards
what is perception?
more than sensory discrimination
an active process in which patterns of stimuli are organised and interpreted using high level cognitive processes
what is bottom-up processing?
sensory driven processing that organises incoming sensory information
what is top-down processing?
knowledge, expectation and experience driven processing. higher level thinking
3 properties of visual perception system
adaptation effect eg negative after images
depth perception eg linear perspective, interposition etc
gestalt perception
what is gestalt perception?
the basic organisational tendencies in perception, seeking meaningful groupings eg visual grouping, figure-ground organisation
what is the ‘assumptive world’
own internal model of the perceived world
what do sensory processes limit?
the amount of information available to us. helps us filter out unimportant or irrelevant information
who performed the ‘context of madness’ experiment and what was it?
rosenhan 1973
8 pseudopatients went to doctors claiming to hear voices
all diagnosed with schizophrenia
what is consciousness?
awareness of self + surroundings
it lies on a continuum from focused alertness to coma
what are the 4 things altered states can be caused by?
sleep + dreams
psychoactive drugs
meditation
hypnosis
who wrote ‘the hard problem’ and what did it say?
chalmers 1994
explains how physical processes in the brain give rise to subjective experiences
what is monitoring?
only conscious of the things you pay attention to (inattentional blindness)
what is the controlling view on consciousness?
idea that you can plan, initiate, guide future actions
what is unconscious processing?
the ability of the brain to process information while not aware eg subliminal perceprtion, ironic thought suppression
what is the stroop effect?
brain’s reaction time slows down when it has to deal with conflicting information.
how are psychoactive drugs classified?
on behaviour
what are the two forms of meditation?
one-point meditation and open meditation
what are the two states hypnosis can induce?
altered consciousness 40% (hidden observer)
focused attention 60% (state of compliance)
how many stages of sleep are there?
5 (including REM sleep)
how long is a normal sleep cycle?
around 90 mins
what is core sleep?
first 5 hrs
no REM
what is optional sleep?
next 2+ hrs of sleep after core
mostly stage 2 and REM sleep