INCIHUSA   20883
INSTITUTO DE CIENCIAS HUMANAS, SOCIALES Y AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Transitional spaces can be a lighting barrier for older adult
Autor/es:
CECILIA LASAGNO; ANDREA PATTINI; LUIS ISSOLIO; ELISA COLOMBO
Lugar:
Toulouse
Reunión:
Congreso; ECVP 2011 - XXXIV Annual Meeting European Conference on Visual Perception; 2011
Resumen:
A transitional space (TS), from exterior to interior, can become a ?lighting barrier? due to the extreme lighting conditions involved. Given the increase in adaptation time with ageing, the e ects of strong illumination changes will depend on people?s age. An experiment was performed to test this. We measured the time required to identify the orientation of the aperture of two rings when the person moves from outside to inside a building. The adaptation of the subjects was determined by the outdoor conditions (sunny) and the change of adaptation luminance was about 4 orders of magnitude. Stimulus contrast was 0.45 and the aperture size 0.7 degree. Thirteen older adults (60?67 years of age), nine younger ones (30?52) and eight young adults (20?30 years) with healthy vision participated in the experiment. All subjects repeated the task 5 times. To perform the task, the oldest group needed 4 times the time required by the youngest group, the middle group needed an intermediate value. Applying a multilevel model to measure the observations? dependency, we found that the the effciency differences between age groups are statistically significant (p