Poster F93, Tuesday, March 27, 8:00-10:00 am, Exhibit Hall C
Sleep Quality’s Effect on EEG Activity Underlying Information Processing during Motor Control
Katherine A. Hyson1, Robert S. Ross1, Wayne J. Smith1, Ronald V. Croce1; 1University of New Hampshire
Only 9% of the poor sleep population attributes their sleep difficulties to having a diagnosed sleep disorder, yet a majority of people suffer from poor sleep quality. Sleep quality impacts cognitive processing and it is currently unclear how sleep quality impacts motor control. The N1 visual sensory component and the P300 attention and cognitive processing component during motor control may be impacted by sleep quality. The objective of this experiment was to determine if tasks with increasing motor-control requirements altered N1 and P300 latency and amplitude. EEG data were collected during a simple reaction task (SRT), a choice reaction time task (CRT), and a CRT-Dual Task (CRT-Dual). In the SRT, participants were instructed to hit a button after a cue, in the CRT they were instructed to hit different buttons based on varying color cues, and in the CRT-Dual they performed the CRT while counting backwards. Both amplitude and latency of N1 and P300 were compared across all three conditions and in poor (N=8) and good sleep (N=5) quality groups for electrodes Pz and O2 located over parietal and occipital scalp regions using two 2x3 ANOVAs. Preliminary results indicated a main effect of condition for P300 latency, where latencies increased with task complexity. Results also suggested a trend towards a significant main effect of group for P300 amplitude, where amplitude may be increased in the poor sleep quality group across all conditions. Results suggest sleep quality may impact attention, leading to changes in information processing during reaction-time tasks.
Topic Area: PERCEPTION & ACTION: Motor control