4.6 Article

Attention and social communication skills of very preterm infants after training attention control: Bayesian analyses of a feasibility study

Journal

PLOS ONE
Volume 17, Issue 9, Pages -

Publisher

PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0273767

Keywords

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Funding

  1. public health agency (PHA), health and social care (HSC) research and development division [STL/5274/16]

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Very preterm infants are at risk of cognitive delays and lower educational attainments. This study examines the feasibility of early interventions targeting attention functioning in VP infants and observes moderate positive effects in certain aspects of attention. However, no relevant gains were found in attention habituation or disengagement. The study highlights the utility of Bayesian approaches in estimating potential effects in small samples or exploratory studies.
Background Very preterm (VP) infants (born 28 to <32 weeks of gestation) are at risk of cognitive delays and lower educational attainments. These risks are linked to anomalies in attention and information processing that emerge in the first years of life. Early interventions targeting attention functioning may equip VP infants with key building blocks for later attainments. Methods We tested the feasibility of a randomised trial where VP infants took part in a computerised cognitive procedure to train attention control. Ten healthy VP infants aged approximately 12 months (corrected age) and randomly allocated with 1:1 ratio to the training (interactive computerised presentations) or an active control procedure completed the study. Before and after the training programme, participating infants completed a battery of screen-based attention tests, naturalistic attention and communication tasks, and temperament assessments. In a previous study we analysed the data concerning feasibility (e.g. recruitment and retention). In the paper presented here we considered the infants' performance and used Bayesian regression in order to provide credible treatment estimates considering the data collected. Results Estimates indicate moderate treatment effects in visual memory: compared to controls, trained infants displayed improvements equivalent to 0.59 SD units. Trained infants also improved in their abilities to attend to less salient stimuli presentations by 0.82 SD units, compared to controls. However, results did not indicate relevant gains in attention habituation or disengagement. We also reported moderate improvements in focused attention during naturalistic tasks, and in directing other people's attention to shared objects. Discussion The results warrant further investigation concerning the effectiveness of training attention control in VP infants, extending this line of research beyond our small and homogeneous sample of healthy VP infants. This study also emphasises the utility of Bayesian approaches in estimating potentially relevant effects in small samples or exploratory studies. The scope for further research on early attention control training is discussed in light of studies indicating VP children's susceptibility to positive environmental inputs.

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