Category 122
Online follow-upCognitive function online ⏵ Symbol digit substitution


Participants were presented with a series of grids in which symbols were to be matched to numbers according to a key presented on the screen.

The values for Field 20198, Field 20200, Field 20229 and Field 20230 must be considered together as the corresponding entries in them relate to the same challenge/response pair.

This measure was also performed in clinics using a touchscreen in Category 502.