Prosopagnosia in addition to Face-Specific Mechanisms Brad Duchaine Vision Sciences Laborat

Prosopagnosia in addition to Face-Specific Mechanisms Brad Duchaine Vision Sciences Laborat www.phwiki.com

Prosopagnosia in addition to Face-Specific Mechanisms Brad Duchaine Vision Sciences Laborat

Maniatis, Lisa, Office Manager has reference to this Academic Journal, PHwiki organized this Journal Prosopagnosia in addition to Face-Specific Mechanisms Brad Duchaine Vision Sciences Laboratory Harvard University http://www.faceblind.org The nature of cognitive specializations Domain-general—mechanisms specialized as long as particular processing tasks. e.g.-recognition, reasoning. Domain-specific—mechanisms specialized as long as particular types of content. e.g.-speech, faces. Prosopagnosia: Acquired & Developmental www.faceblind.org contacted by 400 prosopagnosics Long considered an extremely rare condition Majority are developmental

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“While traveling, I had a stopover at O’Hare in addition to I was approached by a stranger in the lounge area. It took 10-15 seconds of casual conversation be as long as e realizing who it was. It was my brother.” Living with Prosopagnosia “I think prosopagnosia has worsened my current depression, if it’s not the root cause of it. This condition always affects my ability to as long as m normal social links to others. I prefer to be a recluse because I can’t confidently function any other way. My avoidance of people to interact with socially is nearly phobic.” Explanation in prosopagnosia Face-Specific Mechanism Edward Case History: Developmental Prosopagnosic General face processing impairment. Reports no difficulties with object recognition. No navigational difficulties. Aware of problems as a child. Knows of no head trauma. MRI showed no abnormalities. 53-year-old right-h in addition to ed man. Ph.D.s in physics in addition to theology.

LJ Case History: Acquired Prosopagnosic Feels lonely in world devoid of facial in as long as mation. Impairment beginning with face detection. Knows of no head trauma. Incidents over last few years. 16-year-old high school student. Incident at school dance.

LJ Case History: Acquired Prosopagnosic Feels lonely in world devoid of facial in as long as mation. Impairment beginning with face detection. Knows of no head trauma. Incidents over last few years. 16-year-old high school student. Incident at school dance. Reports normal object recognition. Navigational skills are deteriorating. CAT, MRI, in addition to EEG are normal. Famous Face Recognition Edward’s Face Recognition Duchaine & Nakayama (2004) Neuron LJ’s Face Recognition

fMRI procedure Localizer: Block-design with 5 stimulus classes. Faces Scenes Bodies Objects Scrambled Controls FFA: Faces – Objects PPA: Places – Objects Controls

EBA: Bodies – Objects % Signal Change to Face 2 Repetition decrease in FFA Face 1 Face 2 Face 1 Face 2 Different Face Same Face % Signal Change Same / % Signal Change Diff

A mechanism isn’t working, but what is its domain Explanations as long as prosopagnosia Mechanism as long as recognizing individual items. (Damasio et al., 1982) Within-Class Mechanism Within-Class Mechanism

Faces: Individual Scores A’

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Response time z scores Non-Decomposable Mechanism Mechanism as long as representing objects difficult to decompose into parts (Farah, 1991) May require holistic strategy. Hypothesis not explicit about what objects qualify.

Curvature Mechanism Mechanism as long as representing curved surfaces (Kosslyn et al., 1995; Laeng & Caviness, 2001). Laeng & Caviness (2001): Dogs, glasses, in addition to cars. Upright faces activate configural processing. Configural Processing Mechanism Domain-general mechanism as long as configural processing (Levine & Calvanio, 1989) Face-specific or General purpose Parts Spacing

Remaining Hypotheses

Maniatis, Lisa Office Manager

Maniatis, Lisa is from United States and they belong to ITtoolbox and they are from  Scottsdale, United States got related to this Particular Journal. and Maniatis, Lisa deal with the subjects like Information Technology Industry

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