Module 3 Perception PDF

MODULE 3: PERCEPTION (PART 3) 20XX PRESENTATION TITLE 1  TOPICS PART 3 - DEFICITS IN PERCEPTION - PROCESSING DEFICITS - ANOMALIES IN COLOR PERCEPTION 20XX PR...

MODULE 3: PERCEPTION (PART 3) 20XX PRESENTATION TITLE 1  TOPICS PART 3 - DEFICITS IN PERCEPTION - PROCESSING DEFICITS - ANOMALIES IN COLOR PERCEPTION 20XX PRESENTATION TITLE 2  DEFICITS IN PERCEPTION AGNOSIA Inability to recognize and identify objects or persons despite having knowledge of the characteristics of the objects or persons Shows the specialization of our perceptual systems 20XX PRESENTATION TITLE 3  DEFICITS IN PERCEPTION TYPES OF AGNOSIA VISUAL AGNOSIA Normal sensation but unable to recognize what is in front of them. 20XX PRESENTATION TITLE 4  DEFICITS IN PERCEPTION TYPES OF AGNOSIA SIMULTAGNOSIA - Unable to pay attention to more than one object at a time. 20XX PRESENTATION TITLE 5  DEFICITS IN PERCEPTION TYPES OF AGNOSIA SPATIAL AGNOSIA - Severe difficulty in negotiating the everyday environment. - Cannot navigate in even familiar environment - Gets lost 20XX PRESENTATION TITLE 6  DEFICITS IN PERCEPTION Prosopagnosia Inability to recognize faces, including one's own Cannot recognize person from face Knows a face is a face Can recognize individuals from voice Can recognize objects Can discriminate whether two faces are same or different. 20XX PRESENTATION TITLE 7  DEFICITS IN PERCEPTION TYPES OF AGNOSIA Auditory Agnosia Cannot recognize certain sounds Can not tell if two melodies are the same or different 20XX PRESENTATION TITLE 8  DEFICITS IN PERCEPTION TYPES OF AGNOSIA APPERCEPTIVE AGNOSIA - Failure in object recognition that is linked to a failure in perceptual processing. 20XX PRESENTATION TITLE 9  DEFICITS IN PERCEPTION TYPES OF AGNOSIA ASSOCIATIVE AGNOSIA - Ability to represent objects visually but unable to use this information to recognize things. 20XX PRESENTATION TITLE 10  DEFICITS IN PERCEPTION Ataxia - lack of muscle coordination Optic ataxia Cannot use vision to guide movement Unable to reach for items 20XX PRESENTATION TITLE 11  ANOMALIES IN COLOR PERCEPTION TYPES DICHROMACY - Deficit in color perception - Most common: RED-GREEN Colorblindness 20XX PRESENTATION TITLE 12  ANOMALIES IN COLOR PERCEPTION TYPES PROTANOPIA - Extreme form of red- green color blindness 20XX PRESENTATION TITLE 13  ANOMALIES IN COLOR PERCEPTION TYPES PROTANOMALY - Less extreme form of red-green color blindness 20XX PRESENTATION TITLE 14  ANOMALIES IN COLOR PERCEPTION TYPES DEUTERANOPIA - Have trouble seeing medium wavelength colors (green) 20XX PRESENTATION TITLE 15  ANOMALIES IN COLOR PERCEPTION TYPES DEUTERANOMALY - Less serious form, not see red or green but can distinguish the two. 20XX PRESENTATION TITLE 16  ANOMALIES IN COLOR PERCEPTION TYPES TRITANOPIA - Insensitivity to short wavelength colors (blue) 20XX PRESENTATION TITLE 17  ANOMALIES IN COLOR PERCEPTION TYPES MONOCHROMACY - True color blindness, cannot see color at all 20XX PRESENTATION TITLE 18  ANOMALIES IN COLOR PERCEPTION TYPES MONOCHROMACY: Also known as: Rod Monochromacy Achromacy Achromatopsia 20XX PRESENTATION TITLE 19  ANOMALIES IN PERCEPTION AKINETOPSIA - Selective loss of motion perception - - Bilateral damage to the temporoparietal cortices - Result of a lesion in the prestriate cortex 20XX PRESENTATION TITLE 20  ANOMALIES IN COLOR PERCEPTION AKINETOPSIA Patients have profound motion blindness and struggle in performing the activities of daily living. Frozen frames 20XX PRESENTATION TITLE 21