Printing training increases letter response in right anterior fusiform but produces no change in right posterior fusiform¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r1 · q3
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Right anterior fusiform showed a significant three-way interaction, with greater sensori-motor-group response to letters only after training (t(10) = 5.48, p < .005). → James 2010 q3 i? In right posterior fusiform, no interactions were significant; only stimulus type differed, with shapes producing greater signal change than letters. → James 2010 (2)

Evidence¶

James 2010¶

James, K. H. (2010). Sensori-motor experience leads to changes in visual processing in the developing brain. Developmental Science, 13(2), 279-288. https://doi.org/10.1111/j.1467-7687.2009.00883.x

q3 · i? · causal · r1

ROI ANOVA in right anterior fusiform of the twelve children: significant three-way interaction (F(2,20) = 3.9, p < .05), with the sensori-motor group responding more to letters after training, "t(10) = 5.48, p < .005".

"As depicted in Figure 7, this interaction is a result of the greater response of the sensori-motor training group to letter stimuli only after the training session (t(10) = 5.48, p < .005 letters pre-training versus post-training)."

James 2010 (2)¶

James, K. H. (2010). Sensori-motor experience leads to changes in visual processing in the developing brain. Developmental Science, 13(2), 279-288. https://doi.org/10.1111/j.1467-7687.2009.00883.x

q3 · i? · causal · r1

Right posterior fusiform ROI ANOVA in the same sample: significant stimulus-type effect (F(2,20) = 7.0, p < .005), shapes > letters, letters > pseudo-letters; "No interactions were significant in this region", so training changed nothing here.

"In this region, the 2 × 2 × 3 ANOVA resulted in a significant difference among the test stimuli (F(2,20) = 7.0, p < .005, MSe = .02), with a greater percentage signal change to shapes than to letters (t(10) = 6.23, p < .0001) and a greater activation to letters than to pseudo-letters (t(10) = 6.01, p < .004). No interactions were significant in this region."

Discussion¶

Related Claims¶

• Pre-literate children already show a left-hemisphere bias for letter processing before any training — related
• Printing training increases letter-evoked activation in left anterior fusiform gyrus of pre-school children — related
• Printing (sensori-motor) training, but not visual-only training, increases left posterior fusiform activation during letter perception in pre-school children — related
• Behavioural letter recognition improves more after printing than visual-only training, but not significantly — related