Nasal trigeminal chemosensitivity across the adult life span

Individuals can determine the side of the nose that receives an odorant during unilateral presentation (lateralize) if endings of the trigeminal nerve are stimulated. By using psychophysical methods, olfactory detection and trigeminal lateralization thresholds for 1-butanol were obtained from 142 individuals ranging in age from 20 to 89 year. Sensitivity in both chemosensory pathways declined with advancing age, especially in people older than 60 years.     

Affective responses to non-sexual imagery depicting gay men and lesbian women

ABSTRACT

When examining negative attitudes and behaviors directed toward gay men and lesbian women (i.e., homonegativity), researchers tend to use measures that require participants to respond to belief statements. This methodology is problematic for two reasons: 1) it focuses on the social categories “gay men” and “lesbian women” and ignores the practices of relational intimacy engaged in by gay and lesbian persons (practices that, arguably, are at the crux of homonegativity); and 2) it overlooks the affective responses that sexual minorities evoke in heterosexual people. These issues were tackled in the current study. Specifically, heterosexual participants (N = 241) were asked to report their affective state using six basic emotions while viewing photos depicting male-male, female-female, and heterosexual couples. Findings demonstrated that participants, regardless of gender, reacted most negatively to images of female-female couples engaging in everyday intimacies. Theoretical explanations for these findings are explored.