Number-size/location congruency modulates the cognitive P300 only in blind 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

Subclaims¶

q3 i? In blind participants, congruent trials elicited larger P300 amplitudes than incongruent trials, with no interaction with target side. → 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 (delayed detection) with seven early-onset blind and seven sighted adults. The group x congruency interaction indicated the P300 congruency effect appeared "only for the blind group"; larger amplitudes for congruent trials appeared in the blind group with no interaction with side of target presentation. No effect size is printed.

"The P300 (latency band between 260 and 380 ms.) also showed a modulation by congruency, but in this case only for the blind group, as shown by the group 6 congruency interaction (lateral: F(1,12) = 12.31, p = 0.04; midline: F(1,12) = 10.38, p = 0.007)."

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 early sensory N100 only in sighted participants — related