Cognitive correlates of repetitive transcranial magnetic stimulation (rTMS) in treatment-resistant depression- a pilot study

Table 1 Median duration and accuracy of performance on the mCST before the first (trial 1, day 1) vs. after the last (trial 8, day 20) rTMS in patients ( N = 10) or a break (equivalent to the time taken to administer rTMS in patients) in healthy volunteers ( N = 8)

Score (Median; range)	Before first rTMS or break	After last rTMS or break	T (z)	p _two-tailed	r
DURATION
Patient	24 (14–48)	20 (10–29)	8.0 (−2.0)	.047*	-.45
Healthy volunteer	16 (11–19)	15 (8–19)	8.0 (−1.4)	.161	-.35
ACCURACY
Patient	90 (80–100)	100 (90–100)	15.0 (2.1)	.038*	.47
Healthy volunteer	80 (70–100)	100 (80–100)	10.0 (1.9)	.059	.48

mCST- Modified Concept-Shifting Task; T- Wilcoxon Signed-Rank T Test; The effect size r was calculated as r = z/√N, where N = a total number of measurements/case; N = 20 (patients) or N = 16 (healthy volunteers).
*p < .05.

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