In contrast, the variables with less frequency of deficits were ruptures in the MWCST (9.4%), time B- time A/time A (11.5%), and time B/time A (13.5%) and errors part A (14.7%) of TMT.
In relation to the variables with lower frequency of impaired performance in the total sample, the ones that can be highlighted are working memory indexes for suc cessful rules maintenance (MWCST ruptures), proactive interference variables of the RAVLT, executive indices of cognitive flexibility of the TMT (time B minus time A divided by time A, and time B divided by time A) and difficulty in maintaining rules and focused attention (errors of part A of TMT).
There were significant differences between patients and controls in the HVLTR (immediate and delayed recall), BVMT-R (immediate and delayed recall and recognition), Category Fluency Test, MWCST
, Position Discrimination, SDMT, TMT Parts A and B, and Stroop Card 3 results.
The change in blink rate over time correlated significantly with logical memory (r = 0.25, p < 0.05), verbal fluency (r = 0.29, p < 0.01), categories completed in the MWCST (r = 0.23, p < 0.05), and the number of perseverative errors in the MWCST (r = -0.29, p < 0.01).
A forward stepwise linear regression analysis was carried out with the blink rate as the dependent variable, and the scores for AIMS, PSST, MWCST perseverative errors, logical memory, verbal fluency, and number of relapses all used as independent variables.