Number-size/location congruency modulates the early sensory N100 only in sighted participants¶

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2009 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2014: baselines and conditions change

Subclaims¶

q3 i? In sighted participants, congruent trials elicited larger N100 amplitudes than incongruent trials, independent of target location. → 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

ERP experiment using a delayed-detection paradigm with the same 7 blind and 7 sighted participants; ERPs were time-locked to the target. A group x congruency interaction showed the N100 (100–180 ms) "was modulated by congruency only in sighted participants" (lateral F(1,12) = 8.50, p = 0.013), with the effect anteriorly distributed.

"In this group, congruent trials elicited larger amplitudes than incongruent trials, independent of the location of the target (lateral: F(1,6) = 10.02, p = 0.019; midline: F(1,6) = 7.9, p = 0.03)."

Discussion¶

Learner Variables¶

• Sensory Integration — predictor: learners who differ on it differ in outcomes

Related Claims¶

• In an auditory number-cue detection task, both blind and sighted adults detect targets faster on number-size/location congruent trials, with no group difference — related
• The authors interpret blind participants' number-space congruency processing as restricted to a controlled, working-memory-dependent cognitive level — a broader claim this one bears on
• In catch trials, large numbers elicit greater right-hemisphere P300 positivity than small numbers — related
• ERP amplitude shows larger negativity for incongruent and No-Go trials at frontal midline sites — related
• Number-size/location congruency modulates the cognitive P300 only in blind participants — related