Behavioral Sciences
Does the Brain Drain Effect Really Exist? A Meta-Analysis
Key Takeaway
A PRISMA-guided meta-analysis of 22 studies and 43 effects found a small overall negative relationship between smartphone presence or use and cognitive performance, with substantial differences by cognitive domain and region.
AI-generated HIE assessmentStudy Design
meta analysis
title and abstract
What the Study Found
This PRISMA-guided meta-analysis synthesizes 22 studies and 43 effects concerning smartphone use or presence and cognitive performance. It reports a small overall negative association, with substantial differences across memory, attention, general performance, and study region. The result supports a qualified rather than universal brain-drain effect, and the heterogeneity makes context-specific interpretation essential.
Original paper recordEvidence Strength
Evidence strengths
- PRISMA-guided synthesis
- Domain and region subgroup analyses
Limitations
- Substantial heterogeneity
- Relatively small evidence base
What This Does Not Prove
This record does not establish effects beyond the population, tasks, duration, and methods described by the paper. It should not be read as a universal causal claim.
HIE Interpretation
Meta-analysis qualifies the brain-drain hypothesis across 22 studies and 43 effects.
AI-generated HIE assessment · AI assessment confidence 90Related Topics
- Cognitive Science
- Memory
- Human-AI Interaction
Connected Claims
- Qualifies
Smartphone presence or use has a small negative average association with cognitive performance, but the effect varies substantially by domain and context.
The pooled effect was small and heterogeneous, so a universal brain-drain interpretation is not supported.
- Scientific evidence strength
- 88
- AI relationship confidence
- 90
- Source / review level
- Abstract reviewed
- Human review
- No human review
- Provenance
- codex-research-curation · initial-curation-v1
Original Source
DOI 10.3390/bs13090751 ↗