Table 1

Overview of specific neuropsychological tests performed prior to ECT and 3 weeks after completion of the ECT course

Name of testCognitive functions assessedPerformance pre-ECTPerformance post-ECT
CST
  • CST A: attention, processing speed

  • CST B: attention, processing speed

  • CST C: mental flexibility

  • CST interference score: mental flexibility

  • CST A: extremely low

    (Z=−4.32)

  • CST B: low average

    (Z=−1.45)

  • CST C: extremely low

    (Z=−3.32)

  • CST interference score: extremely low

    (Z=−2.81)

  • CST A: low average

    (Z=−0.94)

  • CST B: superior

    (Z=1.31)

  • CST C: extremely low

    (Z=−4.81)

  • CST interference score: extremely low

    (Z=−6.84)

SCWT
  • SCWT 1: attention, processing speed

  • SCWT 2: attention, processing speed

  • SCWT 3: selective attention, ability to inhibit cognitive interference

  • SCWT interference score: inhibition

  • SCWT 1: extremely low

    (Z=−2.08)

  • SCWT 2: low average

    (Z=−1.30)

  • SCWT 3: average

    (Z=−0.51)

  • SCWT interference score: average

    (Z=0.1)

  • SCWT 1: average

    (Z=−0.05)

  • SCWT 2: low average

    (Z=−1.09)

  • SCWT 3: average

    (Z=−0.42)

  • SCWT interference score: average

    (Z=−0.31)

LDSTProcessing speed, writing, reading
  • Writing: extremely low (Z=−3.9)

  • Reading: extremely low (Z=−2.56)

  • Writing: borderline/low (Z=−1.77)

  • Reading: low average (Z=−1.19)

BADSExecutive functionsTotal score 3 (impaired)Total score 11 (borderline)
15-Words TestMemory: immediate recall, delayed recall, recognition
  • Immediate: borderline (Z=−1.61)

  • Delayed: extremely low (Z=−2.94)

  • Recognition: borderline (Z=−1.61)

  • Immediate: extremely low (Z=−2.38)

  • Delayed: extremely low (Z=−2.14)

  • Recognition: borderline (Z=−1.95)

VATMemory: learning visual associationsPercentile 1 (extremely low)Percentile 1 (extremely low)
Visuoconstruction tests (drawing of meander pattern, cubes, honeycomb, clock)VisuoconstructionClock drawing ‘poor’, rest ‘wrong’
(rating: good—poor—wrong)
Cube drawing ‘poor’, rest ‘wrong’
(rating: good—poor—wrong)
BNTNamingScore 13/15
(above cut-off, which is 12.5)
Score 14/15
(above cut-off, which is 12.5)
  • Z-scores <2.00 indicate impairment.

  • BADS, Behavioural Assessment of the Dysexecutive Syndrome; BNT, Boston Naming Test; CST, concept shifting task; ECT, electroconvulsive therapy; LDST, Letter Digit Substitution Test; SCWT, Stroop Colour and Word Test; VAT, Visual Association Test.