Getting to know you: Emerging neural representations during face familiarization

Authors: Ambrus, G.G., Eick, C.M., Kaiser, D. and Kovács, G.

Journal: Journal of Neuroscience

Volume: 41

Issue: 26

Pages: 5687-5698

eISSN: 1529-2401

ISSN: 0270-6474

DOI: 10.1523/JNEUROSCI.2466-20.2021

Abstract:

The successful recognition of familiar persons is critical for social interactions. Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. In three EEG experiments on human participants of both sexes, we elucidated how representations of face familiarity and identity emerge from different qualities of familiarization: brief perceptual exposure (Experiment 1), extensive media familiarization (Experiment 2), and real-life personal familiarization (Experiment 3). Time-resolved representational similarity analysis revealed that familiarization quality has a profound impact on representations of face familiarity: they were strongly visible after personal familiarization, weaker after media familiarization, and absent after perceptual familiarization. Across all experiments, we found no enhancement of face identity representation, suggesting that familiarity and identity representations emerge independently during face familiarization. Our results emphasize the importance of extensive, real-life familiarization for the emergence of robust face familiarity representations, constraining models of face perception and recognition memory.

https://eprints.bournemouth.ac.uk/36393/

Source: Scopus

Getting to Know You: Emerging Neural Representations during Face Familiarization.

Authors: Ambrus, G.G., Eick, C.M., Kaiser, D. and Kovács, G.

Journal: J Neurosci

Volume: 41

Issue: 26

Pages: 5687-5698

eISSN: 1529-2401

DOI: 10.1523/JNEUROSCI.2466-20.2021

Abstract:

The successful recognition of familiar persons is critical for social interactions. Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. In three EEG experiments on human participants of both sexes, we elucidated how representations of face familiarity and identity emerge from different qualities of familiarization: brief perceptual exposure (Experiment 1), extensive media familiarization (Experiment 2), and real-life personal familiarization (Experiment 3). Time-resolved representational similarity analysis revealed that familiarization quality has a profound impact on representations of face familiarity: they were strongly visible after personal familiarization, weaker after media familiarization, and absent after perceptual familiarization. Across all experiments, we found no enhancement of face identity representation, suggesting that familiarity and identity representations emerge independently during face familiarization. Our results emphasize the importance of extensive, real-life familiarization for the emergence of robust face familiarity representations, constraining models of face perception and recognition memory.SIGNIFICANCE STATEMENT Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. To elucidate how face representations change as we get familiar with someone, we conducted three EEG experiments where we used brief perceptual exposure, extensive media familiarization, or real-life personal familiarization. Using multivariate representational similarity analysis, we demonstrate that the method of familiarization has a profound impact on face representations, and emphasize the importance of real-life familiarization. Additionally, familiarization shapes representations of face familiarity and identity differently: as we get to know someone, familiarity signals seem to appear before the formation of identity representations.

https://eprints.bournemouth.ac.uk/36393/

Source: PubMed

Getting to know you: emerging neural representations during face familiarization

Authors: Ambrus, G.G., Eick, C.M., Kaiser, D. and Kovacs, G.

Journal: JOURNAL OF NEUROSCIENCE

Volume: 41

Issue: 26

eISSN: 1529-2401

ISSN: 0270-6474

DOI: 10.1523/JNEUROSCI.2466-20.2021

https://eprints.bournemouth.ac.uk/36393/

Source: Web of Science (Lite)

Getting to Know You: Emerging Neural Representations during Face Familiarization.

Authors: Ambrus, G.G., Eick, C.M., Kaiser, D. and Kovács, G.

Journal: The Journal of neuroscience : the official journal of the Society for Neuroscience

Volume: 41

Issue: 26

Pages: 5687-5698

eISSN: 1529-2401

ISSN: 0270-6474

DOI: 10.1523/jneurosci.2466-20.2021

Abstract:

The successful recognition of familiar persons is critical for social interactions. Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. In three EEG experiments on human participants of both sexes, we elucidated how representations of face familiarity and identity emerge from different qualities of familiarization: brief perceptual exposure (Experiment 1), extensive media familiarization (Experiment 2), and real-life personal familiarization (Experiment 3). Time-resolved representational similarity analysis revealed that familiarization quality has a profound impact on representations of face familiarity: they were strongly visible after personal familiarization, weaker after media familiarization, and absent after perceptual familiarization. Across all experiments, we found no enhancement of face identity representation, suggesting that familiarity and identity representations emerge independently during face familiarization. Our results emphasize the importance of extensive, real-life familiarization for the emergence of robust face familiarity representations, constraining models of face perception and recognition memory.SIGNIFICANCE STATEMENT Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. To elucidate how face representations change as we get familiar with someone, we conducted three EEG experiments where we used brief perceptual exposure, extensive media familiarization, or real-life personal familiarization. Using multivariate representational similarity analysis, we demonstrate that the method of familiarization has a profound impact on face representations, and emphasize the importance of real-life familiarization. Additionally, familiarization shapes representations of face familiarity and identity differently: as we get to know someone, familiarity signals seem to appear before the formation of identity representations.

https://eprints.bournemouth.ac.uk/36393/

Source: Europe PubMed Central

Getting to Know You: Emerging Neural Representations during Face Familiarization.

Authors: Ambrus, G.G., Eick, C.M., Kaiser, D. and Kovács, G.

Journal: Journal of Neuroscience

Volume: 41

Issue: 26

Pages: 5687-5698

ISSN: 1529-2401

Abstract:

The successful recognition of familiar persons is critical for social interactions. Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. In three EEG experiments on human participants of both sexes, we elucidated how representations of face familiarity and identity emerge from different qualities of familiarization: brief perceptual exposure (Experiment 1), extensive media familiarization (Experiment 2), and real-life personal familiarization (Experiment 3). Time-resolved representational similarity analysis revealed that familiarization quality has a profound impact on representations of face familiarity: they were strongly visible after personal familiarization, weaker after media familiarization, and absent after perceptual familiarization. Across all experiments, we found no enhancement of face identity representation, suggesting that familiarity and identity representations emerge independently during face familiarization. Our results emphasize the importance of extensive, real-life familiarization for the emergence of robust face familiarity representations, constraining models of face perception and recognition memory.SIGNIFICANCE STATEMENT Despite extensive research on the neural representations of familiar faces, we know little about how such representations unfold as someone becomes familiar. To elucidate how face representations change as we get familiar with someone, we conducted three EEG experiments where we used brief perceptual exposure, extensive media familiarization, or real-life personal familiarization. Using multivariate representational similarity analysis, we demonstrate that the method of familiarization has a profound impact on face representations, and emphasize the importance of real-life familiarization. Additionally, familiarization shapes representations of face familiarity and identity differently: as we get to know someone, familiarity signals seem to appear before the formation of identity representations.

https://eprints.bournemouth.ac.uk/36393/

Source: BURO EPrints