Book terms Flashcards
transcranial direct current stimulation
electrical current directly by placing small electrodes on the skull
transcranial magnetic stimulation
brief magnetic pulse is applied to the head that temporarily induces a weak electrical current in the brain
electroencephalography (EEG)
measures electrical activity of the brain
lesion induction
lobectomy
removing most or all of one of the lobes of the brain
diffuse optical imaging
light change when it passes through oxygenated blood
high spatial and temporal resolution
opponent process theory
our cones send information to retinal ganglion cells that respond to pairs of colors
webers law
bigger stimuli require larger differences to be noticed (5 vs. 10 and 100 vs 110)
differences in the somatosensory map
different regions are sized based on the sensitivity of specific parts on the opposite side of the body
how you’re still able to understand what friends are saying to you at a loud concert, as long as you are able to get visual cues from watching them speak
superadditive effect of multisensory integration
sensory adaptation
principle of inverse effectiveness
if one sense alone is already strong enough, adding information from other senses has a smaller effect.
In a noisy environment (weak auditory response), seeing someone’s lips move while they talk helps a lot. But in a quiet café (strong auditory response), you might not need the visual cues as much because the sound alone is clear.
The first is an example of what effect?
The second is an example of what effect?
additive, inverse
somatosensation
ability to sense touch, temperature and pain
light adaption
adjustment of eye to high levels of light
dark adaption
adjustment of eye to low levels of light
superadditive effect of multisensory integration
responses to multimodal stimuli are typically greater than the sum of the independent responses to each unimodal component if it were presented on its own.
Gestalt law of proximity
human eye perceives elements that are close together as more related
sustained attention
maintain focus
search tasks require which attention
sustained
divided attention
spatial attention
how we focus on one part of our environment and how we move attention to other locations in the
focusing on the speed of the car requires which attention
spatial attention
selective attention
cocktail party effect is due to which attention
selective
past memories interfere with the encoding of new ones
proactive interference
unusual events (in a context of similar events) will be recalled and recognized better than uniform (nondistinctive) events
distinctiveness