Differentiation of conversive sensory loss and malingering by P300 in a modified oddball task.

@article{Lorenz1998DifferentiationOC,
  title={Differentiation of conversive sensory loss and malingering by P300 in a modified oddball task.},
  author={Juergen Lorenz and Kl.-G. Kunze and Burkhart Bromm},
  journal={Neuroreport},
  year={1998},
  volume={9 2},
  pages={
          187-91
        }
}
We applied the methodology of evoked potentials (EP) to reveal the functional level of abnormality in a patient with circumscribed complete anaesthesia due to conversion disorder. EP components related to sensory and perceptual processing of both innocuous electrical and noxious laser stimuli were normal. However, a P300 component indicating cognitive processing failed to appear when using a modified oddball task with rare stimuli applied to the anaesthetic right hand. P300 was present with… CONTINUE READING

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