Lateralised perception of bilateral chimaeric faces by normal subjects

Milner, A. David; Dunne, Joanne

doi:10.1038/268175a0

Cited by 25 publications

(8 citation statements)

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“…1998, 2000). This is similar to humans (Gilbert & Bakan 1973; Schwartz & Smith 1980; Hilliard 1973; Milner & Dunn 1977; Broman 1978). Our data, demonstrating that inverted faces bilaterally activate the posterior temporal cortex, is also similar to data in humans, where scrambled, inverted faces or objects produce a bilateral or left‐biased pattern of activation (Puce et al .…”

Section: Discussionsupporting

confidence: 72%

Is right hemisphere specialization for face discrimination specific to humans?

Broad

Mimmack

Kendrick

2000

Eur J of Neuroscience

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Patterns of neural activation during face recognition were investigated in sheep by quantifying altered c-fos mRNA expression in situations where faces (sheep vs. human) can (faces upright) and cannot (faces inverted) be discriminated. Exposure to upright faces selectively increased expression significantly more in the right inferior temporal cortex than in the left, and active choice between upright faces additionally increased expression bilaterally in basal amygdala and hippocampus (CA1-4). Exposure to inverted faces did not lead to enhanced activation in the right inferior temporal cortex, amygdala or hippocampus but instead increased expression levels in the diagonal band of Broca, parietal and cingulate cortices. These results show that discrimination of upright faces in sheep preferentially engages the right temporal cortex, as it does in humans, and that performance of active choices between such faces may additionally involve the basal amygdala and hippocampus.

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Section: Discussionsupporting

confidence: 72%

Is right hemisphere specialization for face discrimination specific to humans?

Broad

Mimmack

Kendrick

2000

Eur J of Neuroscience

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“…All favoured the face represented on the left of the chimeric stimulus, regardless of which hand was used to make the response, indicating an asymmetry of function favouring the right hemisphere. [Milner & Dunne (1977) obtained a similar result with normal subjects when the left hand was used to pick the face from an array.] When a naming response was required, the split-brain subjects named more of the faces represented on the right sides of the chimeric stimuli.…”

Section: Studies With Split-brain Patientsmentioning

confidence: 61%

Lateralized processes in face recognition

Rhodes¹

1985

British J of Psychology

206

116

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In this paper a model is presented in which face recognition is analysed into several stages, each of which may be independently lateralized. Evidence is reviewed which suggests that lateralization is important at all stages of processing a face. Early visuospatial processing, and the creation and comparison of facial representations, appear to be carried out more efficiently by the right hemisphere. Comparisons based on discrete, namable features of faces may yield a left hemisphere advantage. It is also proposed that faces may activate semantic information, including names, more efficiently in the left hemisphere. The model is useful in resolving inconsistencies in the degree and direction of asymmetries found in face-recognition tasks. Suggestions are also made for future research.

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“…goal in this study was to assess the perception of whole faces rather than face parts. Therefore, we utilized the phenomenon of perceptual completion (Milner & Dunne, 1977) to induce a conscious perception of a consistent, complete face for all stimuli by (1) masking midline discrepancies of the two facial halves with a white vertical strip; (2) including a low-contrast, task-irrelevant half face in each hemiface; and (3) presenting stimuli for brief exposure durations followed by a poststimulus mask.…”

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confidence: 99%