The effectiveness of a school mindfulness-based intervention on the neural correlates of inhibitory control in children at risk: A randomized control trial

Interest in the applications of mindfulness practice in education is growing in the scientific community. Recent research has shown that mindfulness practice in schools may be beneficial for executive functions (EFs) which are abilities crucial for healthy development. The study of the effects of mindfulness practices on children's neural correlates of EFs, particularly inhibitory control, may provide relevant information about the impact and mechanisms of mindfulness-based interventions (MBIs) in children. The aim of the present study was to investigate the effects of a MBI in elementary school children on the neural correlates of inhibitory control via a randomized controlled trial. Children from two 4th grade classrooms and two 5th grade classrooms located in a school identified as having low socioeconomic status in Santiago de Chile were randomly assigned to either receive a MBI or serve as active controls and receive a social skills program. Both before and after the interventions, electroencephalographic activity was recorded during a modified version of the Go/Nogo task in a subsample of children in each group. Additionally, teachers completed questionnaires of students’ EFs and students completed self-report measures. Results revealed increases in EFs assessed by questionnaires together with improved P3 amplitude associated with successful response inhibition in children who received the MBI compared to active controls. These results contribute to the understanding of the ways in which mindfulness practices can promote the development of inhibitory control together with EF improvement, factors identified as critical for children's social and emotional development and positive mental health.

Research Highlights

• This study investigated the effects of a mindfulness-based intervention in children from a low socioeconomic status school on neural correlates of EFs.
• Children performed a Go/Nogo task while electroencephalographic activity was recorded and completed questionnaires before and after a MBI or an active control program.
• Improvements in EFs assessed by questionnaires together with an increased Nogo-P3 activity associated with successful inhibition in children who received the MBI were found.
• The results could contribute to understand how mindfulness practice can promote the development of inhibitory control in children from vulnerable populations.

     

ACQUISITION,MAINTENANCE, AND TRANSFER OF A QUESTIONING STRATEGY IN SECOND- AND THIRD-GRADE STUDENTS TO LEARN FROM SCIENCE TEXTBOOKS

Acquisition, maintenance, and transfer of a questioning strategy was examined in second- and third-grade students (N = 16) using a multiple-baseline design. Students were taught to identify text structures (comparison-contrast, cause-effect, and problem-solution) during the first week of instruction, and then they were taught to ask questions appropriate to each structure during the second week of instruction. Results indicated that knowledge of text structure increased and that students could reliably differentiate text structure. The mean proportion of correct questions students asked to guide reading ranged from .93 to .96. Increases in literal and inferential comprehension were observed. Students deployed the strategy on their own in the classroom.     

Strength of Discourse Context as a Determinant of the Subordinate Bias Effect

Two experiments examined the influence of strength of discourse bias on lexical ambiguity resolution. Short passages were constructed to bias polarized ambiguous words (homonyms) strongly or weakly toward the dominant or subordinate meanings. Using a self-paced reading task in Experiment 1, it was demonstrated that in strongly biased discourse, reading times for homonyms in dominant discourse did not differ from those in subordinate discourse. However, when the discourse was weakly biased, homonyms were read faster in dominant discourse than in subordinate discourse. Experiment 2 combined the reading paradigm with a naming task in order to provide an assessment of specific word-meaning activation. Reading times on ambiguous words replicated the results of Experiment 1. In addition, naming latencies for probe words revealed that only the contextually appropriate sense of a homonym was activated in strongly biased discourse. In contrast, both contextually appropriate and inappropriate senses were activated following a weakly biased subordinate discourse, whereas only the dominant sense was activated following weakly biased dominant discourse. The results demonstrate (1) an immediate influence of prior discourse information on lexical processing; and (2) that the strength of discourse constraints can play a governing role in lexical ambiguity resolution. The results were interpreted within the framework of a context-sensitive model of lexical ambiguity resolution.     

Media Effects on Ethnic Identity Among Linguistic Majorities and Minorities

Research on media effects has documented the media's influence on beliefs and behavior while cross‐cultural psychology has documented the effects of the language used in communication on identification with the ingroup and the outgroup. Media usage in the outgroup language should, therefore, affect identification patterns. This research investigates media effects in the acculturation process through a longitudinal design involving minority and majority group members evolving in the same bilingual environment. Subjects were Francophone students (N= 235) from minority and majority settings attending a bilingual (French–English) university. Results revealed that majority students increased significantly written and public media consumption in English whereas minority students increased French written media consumption. Furthermore, increased usage of English written and audiovisual media was related to identity changes in favour of the Anglophone group. Finally, path analysis emphasized the mediating role played by English language confidence and the determining role of ethnolinguistic vitality.