Differences in the neural mechanisms of selective attention in children from different socioeconomic backgrounds: an
Courtney Stevens1, Brittni Lauinger, Helen Neville
1Department of Psychology, University of Oregon, Eugene, OR, USA. cstevens@willamette.edu
Insights
Children from lower socioeconomic backgrounds exhibit attention deficits, particularly in filtering distractions. Neural processing differences emerge early, impacting selective attention abilities.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Children from lower socioeconomic backgrounds often display attention deficits.
- Understanding the neural basis of these attention differences is crucial for targeted interventions.
- Previous research highlights difficulties in filtering irrelevant information and suppressing responses.
Purpose of the Study:
- To investigate the neural mechanisms underlying socioeconomic disparities in selective auditory attention.
- To identify the specific processing stages where attention deficits arise in at-risk children.
Main Methods:
- Utilized event-related brain potentials (ERPs) to measure selective auditory attention in children aged 3-8.
- Children performed a selective listening task, attending to one of two simultaneous stories.
- ERPs were analyzed in response to stimuli presented to attended and unattended ears.
Main Results:
- Children with mothers having lower educational attainment showed diminished neural effects of selective attention.
- These group differences in neural processing were evident as early as 100 milliseconds post-stimulus onset.
- Specifically, children from lower socioeconomic backgrounds demonstrated a reduced ability to filter irrelevant auditory information.
Conclusions:
- Socioeconomic background is associated with differences in the early neural processing stages of selective attention.
- These findings provide direct evidence for early-stage attentional filtering deficits in children at socioeconomic disadvantage.
- Results inform the development of interventions to enhance attention and self-regulation in at-risk youth.
Abstract:
Previous research indicates that children from lower socioeconomic backgrounds show deficits in aspects of attention, including a reduced ability to filter irrelevant information and to suppress prepotent responses. However, less is known about the neural mechanisms of group differences in attention, which could reveal the stages of processing at which attention deficits arise. The present study examined this question using an event-related brain potential (ERP) measure of selective auditory attention. Thirty-two children aged from 3 to 8 years participated in the study. Children were cued to attend selectively to one of two simultaneously presented narrative stories. The stories differed in location (left/right speaker), narration voice (male/female), and content. ERPs were recorded to linguistic and non-linguistic probe stimuli embedded in the attended and unattended stories. Children whose mothers had lower levels of educational attainment (no college experience) showed reduced effects of selective attention on neural processing relative to children whose mothers had higher levels of educational attainment (at least some college). These differences occurred by 100 milliseconds after probe onset. Furthermore, the differences were related specifically to a reduced ability to filter irrelevant information (i.e. to suppress the response to sounds in the unattended channel) among children whose mothers had lower levels of education. These data provide direct evidence for differences in the earliest stages of processing within neural systems mediating selective attention in children from different socioeconomic backgrounds. Results are discussed in the context of intervention programs aimed at improving attention and self-regulation abilities in children at-risk for school failure.
