فصلنامه روانشناسی شناختی

The aim of this research was effect of immediate, recent and remote explicit motor memory on reconsolidation process based stabilization and enhancement and retrograde interference. The statistical sample were 72 right-handed young girl. subjects were divided into two groups of  immediate explicit motor  memory (immediate recall, immediate recall + immediate interference), two groups of  recent explicit motor memory(recall after 5h, recall after 5h + Interference delayed after 5h) and two groups of  remote explicit motor  memory (recall after 24h, recall after 24h + Interference delayed after 24h). This research was consisted of two phases of acquisition and retention and alternating serial reaction time and two selection reaction time tasks were used. In the first phase check out reconsolidation based enhancement and in the second phase check out reconsolidation based stabilization and retrograde interference. In the first phase, results showed that for recall groups after 24h and 5h occurred reconsolidation based enhancement. In the second phase, results showed that for  recent (recall after 5h, recall after 5h + Interference delayed after 5h) and remote (recall after 24h, recall after 24h + Interference delayed after 24h) memory groups occurred reconsolidation based stabilization. In group with immediate offline period (immediate recall+ immediate interference) occurred retrograde interference effect.

In this study we manipulate structure of combined practice (physical along with self-modeling of positive self-review) to examine its effects on motor memory reconsolidation process and motor transfer in children. 36 female students (9-12 years old) from Maktabi elementary school of Qom trained Dart throwing. Of the 15 trials (from 1.5, 2, and 2.5 meters in blocked order), Positive self-reviewing videos were provided in the pre-test. A week later, subjects practiced in 3 groups of combined constant, random and blocked practice. Paired samples T test of Means radial error between end of acquisition and tests showed significant improvement in all practice groups (P≤0.05) for 24 hour blocked retention test (after recall), significant improvement in only combined blocked practice group (P=0.016) for 24 hour constant retention test (after recall) and significant decrease in all practice groups for 24 hour transfer test (after recall). Therefore re-stabilizing motor memory during reconsolidation could occur in children and low variable (blocked) practice could lead to more improvements in reconsolidation process and transfer of motor memory in children.