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Neural correlates of cognitive aging during the perception of facial age: the role of relatively distant and local texture information.

Komes J, Schweinberger SR, Wiese H - Front Psychol (2015)

Bottom Line: Older participants did not show a corresponding effect.ERPs yielded a trend toward reduced N170 inversion effects in older relative to younger adults independent of face age.The reduced N170 inversion effect in older adults may reflect age-related changes in neural correlates of face perception.

View Article: PubMed Central - PubMed

Affiliation: DFG Research Unit Person Perception, Friedrich Schiller University of Jena Jena, Germany ; Department of Psychology, Durham University Durham, UK.

ABSTRACT
Previous event-related potential (ERP) research revealed that older relative to younger adults show reduced inversion effects in the N170 (with more negative amplitudes for inverted than upright faces), suggestive of impairments in face perception. However, as these studies used young to middle-aged faces only, this finding may reflect preferential processing of own- relative to other-age faces rather than age-related decline. We conducted an ERP study in which young and older participants categorized young and old upright or inverted faces by age. Stimuli were presented either unfiltered or low-pass filtered at 30, 20, or 10 cycles per image (CPI). Response times revealed larger inversion effects, with slower responses for inverted faces, for young faces in young participants. Older participants did not show a corresponding effect. ERPs yielded a trend toward reduced N170 inversion effects in older relative to younger adults independent of face age. Moreover, larger inversion effects for young relative to old faces were detected, and filtering resulted in smaller N170 amplitudes. The reduced N170 inversion effect in older adults may reflect age-related changes in neural correlates of face perception. A smaller N170 inversion effect for old faces may indicate that facial changes with age hamper early face perception stages.

No MeSH data available.


Related in: MedlinePlus

Behavioral data from young and older participants. Error bars depict standard errors of the mean.
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Figure 2: Behavioral data from young and older participants. Error bars depict standard errors of the mean.

Mentions: A mixed-model ANOVA on mean response times (see upper part of Figure 2) with the within-subject factors face age (young, old), orientation (upright, inverted), filter (unfiltered, 30 CPI, 20 CPI, 10 CPI) and the between-subjects factor group (young adults, older adults) resulted in main effects of face age, F(1, 46) = 5.97, p = 0.018, 0.12, with faster responses for old as compared to young faces, orientation, F(1, 46) = 212.23, p < 0.001, η2p = 0.82, with slower RTs for inverted vs. upright faces, and filter, F(3, 138) = 145.65, p < 0.001, 0.76, indicating slower responses with increasing filter strength. As indicated by the effect of group, older adults responded slower than young adults, F(1, 46) = 44.45, p < 0.001, 0.49.


Neural correlates of cognitive aging during the perception of facial age: the role of relatively distant and local texture information.

Komes J, Schweinberger SR, Wiese H - Front Psychol (2015)

Behavioral data from young and older participants. Error bars depict standard errors of the mean.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4585215&req=5

Figure 2: Behavioral data from young and older participants. Error bars depict standard errors of the mean.
Mentions: A mixed-model ANOVA on mean response times (see upper part of Figure 2) with the within-subject factors face age (young, old), orientation (upright, inverted), filter (unfiltered, 30 CPI, 20 CPI, 10 CPI) and the between-subjects factor group (young adults, older adults) resulted in main effects of face age, F(1, 46) = 5.97, p = 0.018, 0.12, with faster responses for old as compared to young faces, orientation, F(1, 46) = 212.23, p < 0.001, η2p = 0.82, with slower RTs for inverted vs. upright faces, and filter, F(3, 138) = 145.65, p < 0.001, 0.76, indicating slower responses with increasing filter strength. As indicated by the effect of group, older adults responded slower than young adults, F(1, 46) = 44.45, p < 0.001, 0.49.

Bottom Line: Older participants did not show a corresponding effect.ERPs yielded a trend toward reduced N170 inversion effects in older relative to younger adults independent of face age.The reduced N170 inversion effect in older adults may reflect age-related changes in neural correlates of face perception.

View Article: PubMed Central - PubMed

Affiliation: DFG Research Unit Person Perception, Friedrich Schiller University of Jena Jena, Germany ; Department of Psychology, Durham University Durham, UK.

ABSTRACT
Previous event-related potential (ERP) research revealed that older relative to younger adults show reduced inversion effects in the N170 (with more negative amplitudes for inverted than upright faces), suggestive of impairments in face perception. However, as these studies used young to middle-aged faces only, this finding may reflect preferential processing of own- relative to other-age faces rather than age-related decline. We conducted an ERP study in which young and older participants categorized young and old upright or inverted faces by age. Stimuli were presented either unfiltered or low-pass filtered at 30, 20, or 10 cycles per image (CPI). Response times revealed larger inversion effects, with slower responses for inverted faces, for young faces in young participants. Older participants did not show a corresponding effect. ERPs yielded a trend toward reduced N170 inversion effects in older relative to younger adults independent of face age. Moreover, larger inversion effects for young relative to old faces were detected, and filtering resulted in smaller N170 amplitudes. The reduced N170 inversion effect in older adults may reflect age-related changes in neural correlates of face perception. A smaller N170 inversion effect for old faces may indicate that facial changes with age hamper early face perception stages.

No MeSH data available.


Related in: MedlinePlus