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The role of interval underestimation in hyperactive children's failure to suppress responses over time

The role of interval underestimation in hyperactive children's failure to suppress responses over time
The role of interval underestimation in hyperactive children's failure to suppress responses over time
The relationship between response inhibition and time estimation abilities was investigated in a group of hyperactive and non-hyperactive children. Children performed a discrete trials intertemporal response task under two conditions. Under both conditions children had to respond within a 2 s window, which was delayed for a set period (either 5 or 15 s). In condition one (signalled condition), these response requirements were signalled by changes in the expression of a face drawn on a computer screen.
In condition two (unsignalled condition), always presented on the trial following the signalled condition, these changes in expression were obscured by a hand drawn over the mouth of the face so that effective performance depended on the childs ability to estimate the point at which the facial expression changed on the preceding trial. Both groups of children had little difficulty inhibiting responses when the response requirements were signalled.
All children made far more errors under the unsignalled condition. Hyperactive children displayed a systematic tendency to respond before the response window occurred. Taken together, these data give no support to the idea that hyperactivity is essentially a problem of disinhibition and raise interesting questions about the role of time mis-estimation in the disorder.
hyperactivity, behavioural regulation, response inhibition, Impulsiveness, time perception, delay aversion
0166-4328
45-50
Sonuga-Barke, Edmund J.S.
bc80bf95-6cf9-4c76-a09d-eaaf0b717635
Saxton, Tamsin
ff5ac34c-4bb9-486a-ad72-5a238997c369
Hall, Martin
c0db916f-7b3a-4899-a993-f65a935a3af5
Sonuga-Barke, Edmund J.S.
bc80bf95-6cf9-4c76-a09d-eaaf0b717635
Saxton, Tamsin
ff5ac34c-4bb9-486a-ad72-5a238997c369
Hall, Martin
c0db916f-7b3a-4899-a993-f65a935a3af5

Sonuga-Barke, Edmund J.S., Saxton, Tamsin and Hall, Martin (1998) The role of interval underestimation in hyperactive children's failure to suppress responses over time. Behavioural Brain Research, 94 (1), 45-50. (doi:10.1016/S0166-4328(97)00168-X).

Record type: Article

Abstract

The relationship between response inhibition and time estimation abilities was investigated in a group of hyperactive and non-hyperactive children. Children performed a discrete trials intertemporal response task under two conditions. Under both conditions children had to respond within a 2 s window, which was delayed for a set period (either 5 or 15 s). In condition one (signalled condition), these response requirements were signalled by changes in the expression of a face drawn on a computer screen.
In condition two (unsignalled condition), always presented on the trial following the signalled condition, these changes in expression were obscured by a hand drawn over the mouth of the face so that effective performance depended on the childs ability to estimate the point at which the facial expression changed on the preceding trial. Both groups of children had little difficulty inhibiting responses when the response requirements were signalled.
All children made far more errors under the unsignalled condition. Hyperactive children displayed a systematic tendency to respond before the response window occurred. Taken together, these data give no support to the idea that hyperactivity is essentially a problem of disinhibition and raise interesting questions about the role of time mis-estimation in the disorder.

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More information

Published date: 1998
Keywords: hyperactivity, behavioural regulation, response inhibition, Impulsiveness, time perception, delay aversion

Identifiers

Local EPrints ID: 18266
URI: http://eprints.soton.ac.uk/id/eprint/18266
ISSN: 0166-4328
PURE UUID: f462955c-fa11-4a70-b8dc-43780afff621

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Date deposited: 06 Mar 2006
Last modified: 15 Mar 2024 06:03

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Contributors

Author: Edmund J.S. Sonuga-Barke
Author: Tamsin Saxton
Author: Martin Hall

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