Learning to see friendly faces in different places

Learning to see friendly faces in different places
Stable and idiosyncratic biases in identification in Experiment 1. A)Psychometric fit for two subjects from both sessions. Colors indicate location (seecolors in bottom left corner); actual data (points) are shown only for the extremelocations to avoid visual clutter. B) The parameter estimates across sessions (at least33 days apart) were stable (r = 0.71 [0.47, 0.84], see Table 1). Dots representindividual parameter estimates for each location, color coded according to eachsubject. Correlations were performed on the data shown in this panel. C) Examplemorphs used in the experiment. Note that the morphs depicted here are shown forillustration only, and participants saw morphs of identities that were personallyfamiliar to them. Credit: Visconti di Oleggio Castello et al., eNeuro (2018)

Meaningful social interactions train visual cortex neurons to recognize a familiar face in different visual locations, suggests new research published in eNeuro. The study demonstrates how the brain learns to perceive other people as individuals.

Previous research has shown that attributes of the same face can appear to be different depending on where it is presented in the . For example, a face with unisex features can be seen as a male face in one place and as a in another.

This finding led Ida Gobbini, Matteo Visconti di Oleggio Castello, and colleagues to investigate how regular interactions with the people in one's life influence perception of such .

The researchers asked graduate students to identify photographs of their peers presented on a screen in various locations around a fixation point. They found participants who reported stronger familiarity with one another more consistently recognized the other individual in different parts of their visual field.

The team further simulated how repeated social interactions may tune independent populations of neurons to recognize an individual face regardless of where it appears in space.

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More information: Idiosyncratic, retinotopic bias in face identification modulated by familiarity, eNeuroDOI: 10.1523/ENEURO.0054-18.2018 , Pre-print: www.biorxiv.org/content/early/2018/01/26/253468
Citation: Learning to see friendly faces in different places (2018, October 1) retrieved 5 October 2022 from https://medicalxpress.com/news/2018-10-friendly.html
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