Banca de DEFESA: SABINNE DANIELLE GALINA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : SABINNE DANIELLE GALINA
DATA : 12/05/2017
HORA: 14:00
LOCAL: Sala de Videoconferência do PoP-RN/Rede Nacional de Ensino e Pesquisa (RNP)
TÍTULO:

Relation among light exposure in classroom, sleep-wake cycle and attention in adolescents of different regions of RN

PALAVRAS-CHAVES:

Temporal sleep pattern; light; light intensity; school; attention.

PÁGINAS: 146
GRANDE ÁREA: Ciências Humanas
ÁREA: Psicologia
RESUMO:

In adolescents, sleep phase delay is associated with reduced sleep duration, resulting in excessive diurnal sleepiness and low academic performance. This low performance may be related to the reduction in attention, cognitive process, whose components present circadian variation, and as well as the sleep-wake cycle (SWC) can be modulated by cycles of light-dark. Therefore, this study aims to verify the existence of relations between the lighting intensity in the classroom and the SWC, sleep quality, daytime sleepiness and attention in adolescents in the morning shift of private schools of the capital (C) (Natal: Latitude: 05º 47' 42" South, Longitude: 35º 12' 34" West) and from the interior (I) (Santa Cruz: Latitude: 6° 13' 46'' South, Longitude: 36° 1' 24'' West) of the RN‟s state. A total of 115 adolescents (C: 56 and I: 59), of both sexes (41 boys), enrolled in the freshman and sophomore years of high school, participated in the study. The students answered the questionnaires: "Health and Sleep", Pittsburgh Sleep Quality Index, Puberty and Phase Preference Scale, and Pediatric Daytime Sleepiness Scale, as well as a Sleep diary, which contained the Maldonado Sleepiness Scale, the latter for 10 days. Attention was assessed by the Continuous Performance Task (CPT), between 7:30h and 9:30h during school hours on a single application. The light intensity was recorded during the students' break time. The classroom was subdivided into 6 quadrants for measurement, which occurred with all lights on and also with the lights out and a projector on, simulating a projected class. In general, the sample had poor sleep habits and quality, partial deprivation and sleep irregularity between schooldays and weekends, regardless of where they live, showing that the start time of classes in the morning shift remains a challenge for adolescents. The individuals exposed to high light intensity within the classroom had earlier get up times (r = -0.30, p <0.001), later bedtimes (r = 0.23, p <0.05), and get up time irregularity (r = 0.20, p <0.05), and shorter time in bed during the week (r = -0.16, p = 0.05); As well as better attention performance through a higher percentage of correct answers (A) and lower omissions (O) for the tonic (A: r = 0.22, p <0.05, and O: r = -0.26, p<0.05) and phasic alertness (A: r = 0.22, p <0.05 and O: r = -0.23, p <0.05), and sustained attention (A: r = 0.17, p = 0 ,06 and O: r = 0.26, p <0.001). Thus, light intensity in the classroom can be a factor that influences sleep and attention components, such as tonic and phasic alertness and sustained attention; since those who attend classes in rooms with higher light intensity presented modifications in the sleep pattern and better attentional performance. However, additional studies with a larger number of schools in the localities studied are necessary to confirm this evidence.

MEMBROS DA BANCA:
Presidente - 1199136 - CAROLINA VIRGINIA MACEDO DE AZEVEDO
Externo à Instituição - FERNANDO MAZZILLI LOUZADA - UFPR
Interno - 1216466 - JOHN FONTENELE ARAUJO