Matching of familiar faces and abstract patterns: behavioral and high-resolution ERP study

Mnatsakanian, Elena

doi:10.1016/s0167-8760(02)00154-x

Cited by 11 publications

(7 citation statements)

References 34 publications

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“…In addition, we found that the amplitudes of the N170 and VPP did not differ between familiar and unfamiliar faces. The results are consistent with previous research [16][17][18] and indicate that the N170 and VPP mainly reflect the process of structural encoding of face stimuli [19]. We showed further that the N170 and the VPP did not differ between self-faces and other faces, suggesting that self-faces could not be distinguished from other faces at the early stage of face structural encoding.…”

Section: Discussionsupporting

confidence: 92%

Self-face recognition in attended and unattended conditions: an event-related brain potential study

Zhu

Han²

2006

NeuroReport

134

117

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This study investigated whether neural mechanisms of self-face recognition are modulated by attention by recording event-related brain potentials associated with self-face recognition. Participants identified head orientations of self-faces and familiar or unfamiliar other faces presented briefly at the center of the visual field. Event-related brain potentials to self-faces and other faces were recorded when self-faces and familiar or unfamiliar other faces were either task relevant (attended) or irrelevant (unattended) in separate blocks of trials. We found that early face-specific event-related brain potential components such as the N170 and vertex positive potential did not differ between self-faces and other faces. Relative to familiar faces, however, self-faces induced an increased positivity over the frontocentral area at 220-700 ms. The increased positivity to self-faces relative to familiar faces between 500 and 700 ms was reduced in the attended relative to the unattended conditions, which arose from the fact that the amplitude to familiar faces during this time window was increased in the attended relative to the unattended conditions, whereas the event-related brain potential amplitude to self-faces was not influenced by attention. The event-related brain potential results suggest an automatic process of self-face recognition in human brains that occurs after face structure encoding and is independent of task relevance.

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Section: Discussionsupporting

confidence: 92%

Self-face recognition in attended and unattended conditions: an event-related brain potential study

Zhu

Han²

2006

NeuroReport

134

117

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“…Shorter latencies of face-specific N170 in the right hemisphere were reported by other authors (Yovel et al, 2003). The early match-mismatch effects in the Face task observed in the scalp-recorded ERPs in 200 -250 ms (Mnatsakanian and Tarkka, 2003) can be explained by differences in the activity of the sources 2, 4, 5, and 8 in our models. The difference in 150-170 ms was significant for the activity of the source 7 (left IT cortex), while it was overlooked in scalp ERP analysis.…”

Section: Discussionsupporting

confidence: 66%

“…The reaction times to matching faces were shorter than to non-matching ones (766^34 vs. 829^31 ms). A detailed statistical analysis of the scalp-recorded ERPs and behavioral performance was done in our previous paper for both Face and Pattern tasks (Mnatsakanian and Tarkka, 2003). The grand average data with common average reference are shown in Fig.…”

Section: Behavioral Performance and Erpsmentioning

confidence: 99%

Familiar-face recognition and comparison: source analysis of scalp-recorded event-related potentials

Mnatsakanian

Tarkka

2004

Clinical Neurophysiology

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Objective: We studied the event-related potentials elicited by categorical matching of faces. The purpose was to find cortical sources responsible for face recognition and comparison.Methods: Nineteen healthy volunteers participated in the study. Each trial began with one of the two cues (S1) followed by consecutive pictures (S2 and S3). Each picture was a photograph of a familiar face with a superimposed abstract dot pattern. One cue directed attention to compare faces and another to compare patterns. 128-channel electroencephalogram was recorded. Spatio-temporal multiple dipole source models were generated using Brain Electromagnetic Source Analysis 2000, for the window of 80 -600 ms from S3 onset.Results: The obtained model for face recognition and comparison contained 8 dipoles explaining 97% of grand average and about 90% of individual data and showing temporal and spatial separation of sources: in the frontal region, in the occipital cortex, and in the bilateral medial temporal and inferotemporal regions. Different faces elicited larger components than same person's faces around 400 ms, mainly explained by frontal dipoles.Conclusions: The sources in our models estimate the activity common for both Face task conditions (the recognition of a familiar person) and also differential activity, related to the match/mismatch item processing.

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“…The N400, or a component like it (i.e., the FN400 described earlier), has been shown in memory experiments to be sensitive to a variety of manipulations of item familiarity (see Friedman & Johnson, 2000), even for amnesic patients (Duzel, Vargha-Khadem, Heinze, & Mishkin, 2001;Olichney et al, 2000); faces have been shown to elicit such item familiarity effects, especially if the items are processed for meaning (Huddy, Schweinberger, Jentzsch, & Burton, 2003;Mnatsakanian & Tarkka, 2003). In language and object recognition experiments, the N400 has also proven sensitive to well-established, meaning-based relationships between a presented item and a prior linguistic (see Kutas & Federmeier, 2000) or scenic context (Ganis & Kutas, 2003).…”

Section: The Current Studymentioning

confidence: 95%

Event-related Potential Signatures of Relational Memory

Hannula

Federmeier

Cohen

2006

Journal of Cognitive Neuroscience

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Various lines of evidence suggest that memory for the relations among arbitrarily paired items acquired prior to testing can influence early processing of a probe stimulus. The event-related potential experiment reported here was designed to explore how early in time memory for a previously established face-scene relationship begins to influence processing of faces, under sequential presentation conditions in which a preview of the scene can promote expectancies about the to-be-presented face. Prior to the current work, the earliest component documented to be sensitive to memory for the relations among arbitrarily paired items was the late positive complex (LPC), but here relational memory effects were evident as early as 270-350 msec after face onset. The latency of these relational memory effects suggests that they may be the precursor to similar effects observed in eye movement behavior. As expected, LPC amplitude was also affected by memory for face-scene relationships, and N400 amplitude reflected some combination of memory for items and memory for the relations among items.

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Matching of familiar faces and abstract patterns: behavioral and high-resolution ERP study

Cited by 11 publications

References 34 publications

Self-face recognition in attended and unattended conditions: an event-related brain potential study

Self-face recognition in attended and unattended conditions: an event-related brain potential study

Familiar-face recognition and comparison: source analysis of scalp-recorded event-related potentials

Event-related Potential Signatures of Relational Memory

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