Impaired spatial coding within objects but not between objects in prosopagnosia

Barton, Jason J.S.; Cherkasova, Mariya V.

doi:10.1212/01.wnl.0000168901.98616.1c

Cited by 21 publications

(87 citation statements)

References 21 publications

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“…Patients with prosopagnosia are more impaired on within-object spatial judgments while those with Balint syndrome are more impaired on between-object spatial tasks [34,35]. Most of the visuospatial tasks used to assess aMCI have focused on between-object spatial functions [36,37].…”

Section: Discussionmentioning

confidence: 99%

Deficits in face perception in the amnestic form of mild cognitive impairment

Lim

Lee

Barton

et al. 2011

Journal of the Neurological Sciences

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Section: Discussionmentioning

confidence: 99%

Deficits in face perception in the amnestic form of mild cognitive impairment

Lim

Lee

Barton

et al. 2011

Journal of the Neurological Sciences

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“…Representative MRI scans are shown in Figure 1, and anatomic templates in Figure 2. More detailed case information on most of these subjects can be found in previous reports using the same subject identification numbers (Barton et al, 2004a,Barton et al, 2004b,Barton and Cherkasova, 2005.…”

Section: Methodsmentioning

confidence: 99%

The contribution of the fusiform gyrus and superior temporal sulcus in processing facial attractiveness: Neuropsychological and neuroimaging evidence

et al. 2008

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Current cognitive models suggest that the processing of dynamic facial attributes, including social signals such as gaze direction and facial expression, involves the superior temporal sulcus, whereas the processing of invariant facial structure such as the individuals' identity involves the fusiform face area. Where facial attractiveness, a social signal that may emerge from invariant facial structure, is processed within this dual-route model of face perception is uncertain. Here, we present two studies. First, we investigated the explicit judgments of facial attractiveness and attractiveness-motivated behaviour in patients with acquired prosopagnosia, a deficit in familiar face recognition usually associated with damage to medial occipitotemporal cortex. We found that both abilities were impaired in these patients, with some weak residual ability for attractiveness judgments found only in those patients with unilateral right occipitotemporal or bilateral anterior temporal lesions. Importantly, deficits in attractiveness perception correlated with the severity of the face recognition deficit. Second, we performed a functional magnetic resonance imaging study in healthy subjects that included an implicit and explicit processing of facial attractiveness. We found increased neural activity when explicitly judging facial attractiveness within a number of cortical regions including the fusiform face area, but not the superior temporal sulcus, indicating a potential contribution of the fusiform face area to this judgment. Thus, converging neuropsychological and neuroimaging evidence points to a critical role of the inferior occipitotemporal cortex in the processing of facial attractiveness.

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“…The task was to indicate which apex was farther away. In our prior report, we showed that prosopagnosic subjects with or without hemifield defects (including subjects 005 and 010) could make accurate judgments of similar spatial distances between stimuli under time-limited viewing conditions (8). The six stimuli were designed to approximate a progression from between-object to within-object spatial coding (Fig.…”

Section: Testingmentioning

confidence: 99%

“…A study of a subject with Bálint syndrome suggested that betweenobject representations may be selectively impaired in this condition (7). In that regard, we have recently provided evidence from a series of patients with prosopagnosia, the inability to recognize familiar faces, that their perception of the fine metrics of within-object and within-face spatial relations is impaired, but their between-object spatial judgments are normal (8).…”

mentioning

confidence: 90%