Stimuli are processed concurrently and across multiple sensory inputs. Here we directly compared the effect of multisensory integration (MSI) on reaction time across three paired sensory inputs in eighteen young (M=19.17 yrs) and eighteen old (M=76.44 yrs) individuals. Participants were determined to be non-demented and without any medical or psychiatric conditions that would affect their performance. Participants responded to randomly presented unisensory (auditory, visual, somatosensory) stimuli and three paired sensory inputs consisting of auditory-somatosensory (AS) auditory-visual (AV) and visual-somatosensory (VS) stimuli. Results revealed that reaction time (RT) to all multisensory pairings was significantly faster than those elicited to the constituent unisensory conditions across age groups; findings that could not be accounted for by simple probability summation. Both young and old participants responded the fastest to multisensory pairings containing somatosensory input. Compared to younger adults, older adults demonstrated a significantly greater RT benefit when processing concurrent VS information. In terms of co-activation, older adults demonstrated a significant increase in the magnitude of visual-somatosensory co-activation (i.e., multisensory integration), while younger adults demonstrated a significant increase in the magnitude of auditory-visual and auditory-somatosensory co-activation. This study provides first evidence in support of the facilitative effect of pairing somatosensory with visual stimuli in older adults.

Objective Research has linked adolescent romantic and sexual activities to depressive symptoms. The current study examines whether such activities are uniquely linked to depressive symptoms versus symptoms of other disorders (including anxiety, externalizing, and eating disorders), and whether co-occurring symptoms more precisely account for the association between depressive symptoms and romantic involvement. Method Early adolescent girls (N = 83; mean age = 13.45) participated in baseline and 1-year follow up data collection. Results Romantic (i.e., dating and sexual) activities were longitudinally related to numerous types of symptoms. The association between depressive symptoms and romantic variables remained when considering co-occurring symptoms. Girls with more comorbid disorders reported more romantic activities. Conclusions Results suggest that the maladaptive consequences and precipitants of adolescent romantic activities extend beyond depression, but also imply that this association is not secondary to comorbid symptoms. Future work should clarify causal pathways.