Enhanced dimension-specific visual working memory in grapheme-color synesthesia.
Bottom Line: Synesthetes displayed superior color working memory than controls for both grapheme types, whereas the two groups did not differ in grapheme working memory.Further analyses excluded the possibilities of enhanced working memory among synesthetes being due to greater color discrimination, stimulus color familiarity, or bidirectionality.These results reveal enhanced dimension-specific visual working memory in this population and supply further evidence for a close relationship between sensory processing and the maintenance of sensory information in working memory.
Affiliation: Department of Experimental Psychology, University of Oxford, UK. firstname.lastname@example.orgShow MeSH
Related in: MedlinePlus
Mentions: There was a main effect of Load in the inducer graphemes task, F(1, 18) = 24.12, MSE = 0.02, p < .001, , with participants making fewer errors in the 2-back than in the 3-back condition. Crucially, there were no main effects of Congruency, F < 0.5, or Group, F < 0.7, or a Congruency × Group interaction, F < 0.07, (95% CIs: .00, .12) (see Fig. 4A). As in Experiment 1, the synesthetes’ Congruency effect, MSynCong = –.004, SEM = .012, was inconsistent with the prediction of the dual-coding hypothesis, B = .07; there were no other effects, Fs < 2.7.
Affiliation: Department of Experimental Psychology, University of Oxford, UK. email@example.com