The continuous performance test, identical pairs version (CPT-IP): III. Brain functioning during performance of numbers and shapes subtasks.

@article{Keilp1997TheCP,
  title={The continuous performance test, identical pairs version (CPT-IP): III. Brain functioning during performance of numbers and shapes subtasks.},
  author={John G. Keilp and Juan L{\'o}pez de Herrera and P H Stritzke and Barbara A. Cornblatt},
  journal={Psychiatry research},
  year={1997},
  volume={74 1},
  pages={35-45}
}
The numbers and shapes subtasks of the CPT-IP are difficulty-matched measures of independent aspects of attentional skill that have been used to differentiate the impairments of schizophrenics and major depressives. Previous studies suggest that they tap into lateralized aspects of attentional performance. To investigate this hypothesis, seven subjects free of psychiatric illness were presented with these CPT-IP subtasks during a SPECT procedure. Subtasks--4-digit number strings and nonsense… CONTINUE READING