The effects of aging on spatial frequency tuning

Purpose. To examine whether spatial frequency channels change with age. Method. Detection thresholds were measured for a 4 c/deg sinewave grating embedded in high- or low-pass noise. Masked thresholds were used to derive estimates of the shape and bandwidth of spatial frequency filters in six older (mean age 60) and six younger observers (mean age 23). Results. The group and individual data provide converging evidence that the low-frequency, …