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30 Cards in this Set

  • Front
  • Back


Disorder where a person does not recognise colours


Disorders of vision that impairs object recognition


Disorder of vision that impairs reading ability

Cortical blindness

First line of processing of visual input is disrupted and people experience this as blindness

Cortical visual systems hypothesis

Argues that there are two visual processing streams: one for locating objects and one for identifying


Different levels of performance between tasks

Dorsal streams

Pathway running from occipital to the parietal cortex and which is mainly concerned with perception of visual info

Double dissociation

Difference in performance between two tasks which is opposite

Graceful degradation

Functionality of a brain module is reduced in proportion to the extent of a brain lesion

Ideo-motor apraxia

Disorder of gestures

Informational encapsulation

Property of a cognitive module where it is isolated and operates in ignorance to rest of the cognitive system


Damage to an area of the brain


Way of thinking of mental processes as an interconnected system contained by borders

Object recognition

Synthesising the various elements of an object into work whole and being able to name that object

Occipito temporal regions

Regions of the brain involved in visual object recognition

Ocular apraxia

Disorder of not being able to control where you rest your gaze

Optic apraxia

Disorders of reaching for something when a person uses his sight as a guide of where to reach

Primary visual areas

Area of the Brian to which info travels almost directly to brain

Regional specialisation

when different parts of the brain do different things

Secondary visual areas

Sophisticated areas, dedicated to a range of of specialised visual processing tasks

Sensory modalities

Sensory abilities : hearing, smelling, seeing....

Single dissociation

Difference in performance between two tasks

Spatial ability

Ability to be aware of where something is

Supra-ordinate level

Greater category that an object can be categorised in

Tertiary visual areas

Highest level of the visual system that operates the most abstract aspects of visual processing

Topographical disorientation

Disorder of vision that impairs route finding

Ventral stream

Pathway running from occipital to infero temporal cortex, and is concerned with recognition of objects as members of familiar class

Visual object agnosia

Disorder where a person does not recognise all types of visual objects

Visuo object agnosia

Denial of part of a body


Disorder in the ability to recognise animals