Measurement of development of cognitive and attention functions in children using continuous performance test
Article first published online: 14 APR 2008
© 2008 The Authors
Psychiatry and Clinical Neurosciences
Volume 62, Issue 2, pages 135–141, April 2008
How to Cite
Kanaka, N., Matsuda, T., Tomimoto, Y., Noda, Y., Matsushima, E., Matsuura, M. and Kojima, T. (2008), Measurement of development of cognitive and attention functions in children using continuous performance test. Psychiatry and Clinical Neurosciences, 62: 135–141. doi: 10.1111/j.1440-1819.2008.01746.x
- Issue published online: 14 APR 2008
- Article first published online: 14 APR 2008
- Received 21 August 2006; revised 15 October 2007; accepted 31 October 2007.
- continuous performance test;
Aim: The development of attention function in children is still not sufficiently clear. Although it is difficult to objectively assess attention function, continuous performance tests (CPT) can be used to objectively assess cognitive function along with attention. The development of cognitive and attention functions was examined in children using a CPT.
Methods: A total of 541 healthy girls aged 5–12 years participated. Ten parameters were calculated: numbers of cancellations for either target stimuli (T-cancel) or non-target stimuli (N-cancel), numbers of omission errors (Omission) and commission errors (Commission), hit rate (Hit), false alarm rate (False), mean reaction time for correct response (RT), coefficient of variance for mean reaction time (CVRT), sensitivity index (d′), and lnβ.
Results: The parameters were divided into three types based on pattern of change. T-cancel, False, and Commission, which are related to inhibition of response, N-cancel, Hit, and Omission, which are related to inattention to stimuli, and CVRT, which is related to stability of processing time, exhibited significant change until 5 or 6 years of age. d′, which is related to ability to discriminate between target or non-target, exhibited significant change until 8 years of age. RT, which is related to processing time, exhibited significant change until 11 years of age. lnβ exhibited no significant differences among age groups.
Conclusions: These findings indicate that inhibition function, inattention to stimuli, and stability of processing time develop first. Discrimination ability subsequently increases based on these developments, and finally processing time is reduced.