Table 5.

Characteristics of included study examining the lateralized visual detection task

Author, date of publication	Study Aim	Number of Comparison Groups	Sample Size	Gender (Male%/Female%)	Age (year)
Learmonth et al. 2015b	Examine whether atDCS would reinstate an adaptive “youth-like” pattern of right hemispheric dominance for spatial attention in older adults.	Young adults Older adults	20 20	45%/55% 50%/50%	18–24 (M = 20.9) 60–77 (M = 66.6)

The terms used to describe the age groups are consistent with the terms used by authors. atDCS = anodal transcranial direct current stimulation