Claims

In catch trials, large numbers elicit greater right-hemisphere P300 positivity than small numbers

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2009 · 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.

q3 i? A number x hemisphere interaction in the P300 band showed large numbers elicited greater positivity than small numbers in the right hemisphere, though simple effects were not significant. → Salillas E 2009

Evidence

Salillas E 2009

Salillas E, Grana´ A, El-Yagoubi R, Semenza C (2009) Numbers in the Blind's ''Eye''. PLoS ONE 4(7): e6357. https://doi.org/10.1371/journal.pone.0006357

q3 · i? · causal · r1

Catch-trial analysis (pink noise in both channels, no target) in the same ERP experiment with 7 blind and 7 sighted participants. The interaction "Large numbers elicited a greater positivity than small numbers in the right hemisphere", but the article states the simple effects for this interaction did not reach significance. No effect size is printed.

"In the latency band of the P300 (300–420 ms.) a number 6 hemisphere interaction was found in the lateral electrodes (F(1,12) = 17.9, p = 0.001). Large numbers elicited a greater positivity than small numbers in the right hemisphere."

Discussion

Page metadata
Field Value
type claim
id catch-trial-number-hemisphere-p300
title In catch trials, large numbers elicit greater right-hemisphere P300 positivity than small numbers
description In catch trials, large numbers elicit greater right-hemisphere P300 positivity than small numbers
status review
evidence_strength weak
newest_evidence 2009
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — salillas-e-2009

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