cognition chapter 7

a map of space coded relative to the position of the body

a map of space coded relative to the position of eye gaze

a map of space coding the location of obejcts and places relative to each other

integrating information across sensory modalities

the process by which certain information is selected for further processing and other information is discarded

the brain represents ____ at different levels of abstraction and in different ways

from the brains point of view, space is a common ______ of most perceptual systems

because space is a common dimension of most perceptual systems, _____ modal perception is a thing

our perceptual systems are ____ to process fully all the information that they receive at any given point in time, by _____ processing information in particular regions the problem is solves. this filtering out other information is __ ____

____ is needed to avoid sensory overload. the brain does not have the ____ to fully process alll the information it receives

attention is often to a ____ or a ____ in processing

a failure to consciously see something because attention is directed away from it

participants fail to notice the appearance/disappearance of objects between two alternating images

there is a natural tendency for ____  and eye _____ to go together because visual acuity is greatest at the point of fixation

the most useful aspects of the spotlight metaphor are to emphasize the notion of limited ____ and to emphasize ____ characteristics of attention

a slowing of reaction time associated with going back to a previously attended location

attention that is externally guided by a stimulus

attention is guided by the goals of the perceiver

a task of detecting the presence of absence of a specified target object in an array of other distracting objects

this theory is not only a theory of spatial attention but also a theory of how we combine the different attributes that make up objects (eg. color and location)

according to feature integration theory (FIT), perceptual features such as color and shape are coded in _____ and ____ to attention

the ability to detect an object amongst distractor objects in situation in which the number of distractors presented is unimportant

FIT assumes that pop out occurs by allocating ____ attention to the location of candidate objects. If the objects turns out not to be the target, then the "spotlight" inspects the next candidate

a situation in which visual features of two different objects are incorrectly perceives as being associated with a single object

finding a blue t in the middle of red l's

according to the FIT. attention needs to be deployed to ______ features of the same object correctly

a theory of attention which information is selected according to perceptual attributes

the main reason for having attentional mechanisms is to select some information for ______ processing at the _____ of other information

a theory of attention in which all incoming information is processed up to the level of meaning (semantics) before beign selected for further processing

if an ignored object suddenly becomes the attended object, then participants are slower at processing it

when there is a high ____ load, then selection may be early but in condition of low load in which few objects are present, then there is a ____ for all objects to be _____ meaningfully consistent with late selection

the ventral route (what) leading to the temporal lobes may be concerned with ______ objects. in contrast the dorsal (where) route is concerned with ____ objects in space

single cell recordings from parietal loves of monkeys have identified neurons that _____ visual spatial information with ____ information

parietal neurons tend to respond according to abrupt onset of a stimulus rather than its mere _____

a failure to attend to stimuli on the opposite side of space to the lesion. patients with lesions to the posterior parietal lobe can present this syndrome

neglect suggests that in humans, there is likely to be a hemispheric ______ such that the right parietal lobe is _____ specialized for spatial _____ than the left

a tendency to mis-localize heard sounds onto a seen source of potential sounds

mechanisms that bind together features like FIT does, may also be extended to explain the ____ of features across different _____

single cell data from animals indicate that regions in the parietal cortex _____ different sensory signals

provided that a stimulus is at the critical location, it may not matter whether the stimulus itself is _____ or ____

a severe difficulty in spatial processing normally following bilateral lesions of parietal love; symptoms include simultanagnosia, optic ataxia, and optix apraxia

inability to perceive more than one object at a time

-inability to perceive more than one object at a time (simultanagnosia)
-inability to reach in the proper direction for an object under visual guidance (optic ataxia)
-fixation of faze without a primary deficit of eye movement (optic apraxia)

the brain contains different _____ for computing ___ space and _____ space

balint patients are likely to group parts into wholes if they share shape, color or if theyre ____ together. This suggests that some early _____ binding is possible ___ to attention

a factor that determines grouping of parts into wholes is the ____ of the stimulus and how a given stimulus is interpreted (____ down influences)

spatial representations are not only needed to appreciate the _____ relationship between objects but also to support the kinds of ____ needed to bind individual objects ____ together

patients with hemispatial neglect fail to attend to stimuli on the ____ side of space to their lesion

two ways to test for hemispatial neglect

task involving judging the central point of a line

a variant of the visual search paradigm in which the patient must search for targets in an array, normally striking them through as they are found