Teacher-initiated activities also increased theta power and decreased beta and gamma power, converging with the alpha-based inference of lower wakefulness and attention¶
Claim · All claims
Evidence · 1 study · causalr1·q2
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? Supplementary analyses showed teacher-initiated activities increased theta-band power and decreased beta and gamma power, consistent with a neural shift toward lower wakefulness. → Jennie K. Grammer 2021
Evidence¶
Jennie K. Grammer 2021¶
Jennie K. Grammer, Keye Xu and Agatha Lenartowicz. (2021). Effects of context on the neural correlates of attention in a college classroom. npj Science of Learning 6:15. https://doi.org/10.1038/s41539-021-00094-8
q2 · i? · causal · r1
Supplementary oscillatory analyses reported in the discussion section provide converging evidence for the alpha interpretation; no effect size is printed. The authors read this as "a neural shift from higher to lower oscillations".
"supplemental analyses (c.f., SI) additionally reveal that teacher-initiated activities also increased theta-band (4 –7 Hz) power and decreased both beta (13 –20 Hz) and gamma (30 –50 Hz) power, consistent with a neural shift from higher to lower oscillations, typical of transitions to lower wakefulness"
Discussion¶
Related Claims¶
- Student attention, indexed by occipital alpha power, is lower during teacher-initiated activities (lecture, video) than student-initiated activities (group work, independent work) in a college classroom — related
- MRMR feature ranking identifies occipital alpha PSD as the most discriminative feature, followed by frontal gamma, high-beta, and theta — related
- Random Forest and SHAP analyses identify Gamma and Beta band power at temporal and frontal channels (T3, P3, F7, T4, T4, F8, F7) as the most critical features for EEG familiarity classification — related
- Acute exercise increases cortical delta, theta, alpha, and beta EEG power, with a moderately large effect size of 0.38 to 0.75 standard deviations — related
- Time-related changes in attention within activities occurred only during independent work, not across the other activities — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
theta-beta-gamma-convergent-evidence |
title |
Teacher-initiated activities also increased theta power and decreased beta and gamma power, converging with the alpha-based inference of lower wakefulness and attention |
description |
Teacher-initiated activities also increased theta power and decreased beta and gamma power, converging with the alpha-based inference of lower wakefulness and attention |
status |
review |
evidence_strength |
weak |
newest_evidence |
2021 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — jennie-k-grammer-2021 |
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