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Individual face- and house-related eye movement patterns distinctively activate FFA and PPA.


ABSTRACT: We investigated if the fusiform face area (FFA) and the parahippocampal place area (PPA) contain a representation of fixation sequences that are typically used when looking at faces or houses. Here, we instructed observers to follow a dot presented on a uniform background. The dot's movements represented gaze paths acquired separately from observers looking at face or house pictures. Even when gaze dispersion differences were controlled, face- and house-associated gaze patterns could be discriminated by fMRI multivariate pattern analysis in FFA and PPA, more so for the current observer's own gazes than for another observer's gaze. The discrimination of the observer's own gaze patterns was not observed in early visual areas (V1 - V4) or superior parietal lobule and frontal eye fields. These findings indicate a link between perception and action-the complex gaze patterns that are used to explore faces and houses-in the FFA and PPA.

SUBMITTER: Wang L 

PROVIDER: S-EPMC6892816 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Individual face- and house-related eye movement patterns distinctively activate FFA and PPA.

Wang Lihui L   Baumgartner Florian F   Kaule Falko R FR   Hanke Michael M   Pollmann Stefan S  

Nature communications 20191204 1


We investigated if the fusiform face area (FFA) and the parahippocampal place area (PPA) contain a representation of fixation sequences that are typically used when looking at faces or houses. Here, we instructed observers to follow a dot presented on a uniform background. The dot's movements represented gaze paths acquired separately from observers looking at face or house pictures. Even when gaze dispersion differences were controlled, face- and house-associated gaze patterns could be discrimi  ...[more]

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