On the surface, it seems that ECT had induced severe impairment in spatial cognition and that the impairment showed the familiar pattern of attenuation with the passage of time. However, another recovered patient in the study, who did not receive ECT, also showed substantial spatial deficits on the same subtest of the TPT, and the attenuation of the deficits across time in the ECT-treated patient was probably a result of repeated exposure to the task. We suggest that not all patients who seem to experience spectacular cognitive impairment after ECT have deficits that are attributable to ECT.
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