PSY timed quiz help

Names & Subtypes Descriptions of Condition Brain area Involved Causes

Cerebral A-chromatopsia color agnosia; color is grey and washed out or looking through a dirty window;

ventral medial occipital lobe caused by lesion

• Hemi chromatopsia color agnosia; color is grey and washed out or looking through a dirty window; but only on one side

• only one hemisphere is impacted; not the other side on hemisphere

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• Bilateral Achromatopsia • both visual fields are impacted; the whole visual field is altered grey or black and white

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Both hemispheres impacted

Cerebral Akinetopsia deficit of motion processing; acquired by Alzheimers, difficultly finding objects, vision motion is broken up and not fluid like a movie (video)

V5MT (occipital); Caused by lesions

Visual Object Agnosia loss of ability to tell what objects are

• Apperceptive • visual problem due to impaired (higher order) visual perception; Intact vision - acuity brightness, discrimination, color vision Deficits - abnormal shape perception, grouping process deficit ex: X’s are to lines

-Integrative Agnosia see items are parts but does not use Gesalt principles of grouping, can recreate images; pig example, can see the parts but don’t see them together as a whole; could guess based on pigtail

• Associative • recognition problem to due lacking as association of percept with meaning; can’t recognize objects by sight alone, intact general knowledge of objects, can recognize by touch or definition, not naming a deficit like they just can’t remember; there visual perception is accurate but can’t identify the object; can replicate in drawing but can’t identify what it is unless they are touch it

Prosopagnosia inability to recognize familiar faces, they don’t know their family/friends faces, recognition achieve by other means; my co-exist with object agnosia; CAN discriminate age, gender, emotions, faces for faces, match faces; CAN’T identify individuals, describe owner the face, feel familiarity

Hemianopsia loss of vision on one side; caused by stroke, trauma, tumor - visual field neglect, perceptual deficit (video)

Alexia loss of ability to understand written words; acquire; they could read don’t; caused by trauma, lesion; intact visual language & other language functions; CAN write, take diction, spell orally

• Pure Alexia • cannot read

• Surface Alexia - • dependence on phonological pronunciation; colonel vs.col-on-el

Names & Subtypes Descriptions of Condition Brain area Involved Causes

• Phonological Alexia - • dependence for experience for pronunciation; site reading, unable to use phonological route, CAN’T learn another language; will know the words you know but can’t learn new words

• Deep Alexia - • phonological alexia, semantic paralexia, Bread = food you say a similar word

Auditory Agnosia - the inability to recognize auditory stimuli; left superior temporal cortex

Apperceptive Auditory Agnosia impaired perceptual structure, frequency, pitch, timbre; just noise, not really identifiable

Associative Auditory Agnosia - inability to associate perceived auditory stimulus with meaning, word heard but not understood, foreign language - Autism Connection

Auditory Visual Agnosia - visual and auditory; pure word deafness, can’t understand read or spoken word or sign language, all connection to human beings are lost

Phonagnosia - impairing recognizing familiar voices, other auditory abilities impaired,

damage to inferior and lateral parietal regions of the right hemisphere

damage to inferior and lateral parietal regions of the right hemisphere

Amusia Inability to make or identify music, acquired by brain injury, congenital - tone deafness;

Tactile Agnosia inability to recognize objects by touch, more prevalent than we know;

parietal lobe Caused by lesions

Names & Subtypes Descriptions of Condition Brain area Involved Causes