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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

Grand mean event-related potentials depicting the factors face age and orientation for young older adults and old older adults.
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Figure 6: Grand mean event-related potentials depicting the factors face age and orientation for young older adults and old older adults.

Mentions: An ANOVA on N170 amplitude (see Figure 6) with an additional within-subjects factor hemisphere revealed a significant interaction of orientation by group, F(1, 22) = 7.80, p = 0.011, 0.262, reflecting significant inversion effects in the YOA group, F(1, 11) = 12.39, p = 0.005, 0.530, but not in the OOA group, F < 1. Furthermore, a trend toward a significant interaction of face age by orientation by group was detected, F(1, 22) = 3.52, p = 0.074, 0.138. While both groups showed larger inversion effects for young relative to old faces, this pattern appeared less pronounced in the OOA group. No further effects involving the group factor were significant (all p > 0.1). A corresponding analysis on N170 peak latency revealed a trend toward a main effect of group, F(1, 22) = 3.53, p = 0.074, 0.138, with numerically longer N170 latencies in the OOA relative to the YOA group, and a significant interaction of face age by group, F(1, 22) = 6.50, p = 0.018, 0.228, with longer latencies for old relative to young faces in the YOA group, but no respective difference in the OOA group. The interaction of face age by orientation by group was not significant, F(1, 22) = 1.90, p = 0.182, 0.080. No additional effects involving the group factor were detected (all p > 0.1).


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)

Grand mean event-related potentials depicting the factors face age and orientation for young older adults and old older adults.
© Copyright Policy
Related In: Results  -  Collection

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

Figure 6: Grand mean event-related potentials depicting the factors face age and orientation for young older adults and old older adults.
Mentions: An ANOVA on N170 amplitude (see Figure 6) with an additional within-subjects factor hemisphere revealed a significant interaction of orientation by group, F(1, 22) = 7.80, p = 0.011, 0.262, reflecting significant inversion effects in the YOA group, F(1, 11) = 12.39, p = 0.005, 0.530, but not in the OOA group, F < 1. Furthermore, a trend toward a significant interaction of face age by orientation by group was detected, F(1, 22) = 3.52, p = 0.074, 0.138. While both groups showed larger inversion effects for young relative to old faces, this pattern appeared less pronounced in the OOA group. No further effects involving the group factor were significant (all p > 0.1). A corresponding analysis on N170 peak latency revealed a trend toward a main effect of group, F(1, 22) = 3.53, p = 0.074, 0.138, with numerically longer N170 latencies in the OOA relative to the YOA group, and a significant interaction of face age by group, F(1, 22) = 6.50, p = 0.018, 0.228, with longer latencies for old relative to young faces in the YOA group, but no respective difference in the OOA group. The interaction of face age by orientation by group was not significant, F(1, 22) = 1.90, p = 0.182, 0.080. No additional effects involving the group factor were detected (all p > 0.1).

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