Влияние фонологической петли рабочей памяти на результативность решения математических и вербальных задач у математиков и гуманитариев
Working memory (WM) capacity is well known to influence mathematical abilities. This effect is more profound for volume of visual-spatial domain of WM, while volume of WM phonological loop, associated with processing of auditory and phonological information has no or little effect on mathematical abilities in adults. However the role of the brain language network at mathematical cognition is still under discussion. We examined the effect of WM in phonological loop using a simple forward digital span test at the speed and correctness of solving different mathematical versus verbal tasks in healthy right handed young volunteers with higher education or students in math and humanities. The correctness (С) and time of the task solving (TS) was significantly better in Math group (N=10), than in Humanitarian group of subjects (N=10). The WM volume did not differ between the groups, but affected differently C and TS of tasks in mathematicians and humanitarians. Spearman’ correlation analysis for separate groups showed that WM affected the C of solving the mathematical tasks in Math group but not TS, while in Humanitarian group we observed the opposite tendency. Remarkably, the WM correlated negatively with TS of logical task for arithmetical sequences in Math group. Our results imply that WM in verbal domain may influence mathematical abilities especially when they require involvement of logical thinking.