We explored the causal role of individual and age-related differences in working memory (WM) capacity in long-term memory (LTM) retrieval. Our sample of 160 participants included 120 children (6-13-years old) and 40 young adults (18-24 years). Participants performed a WM task with images of unique everyday items, presented at varying set sizes.…

Younger children have more difficulty in sharing attention between two concurrent tasks than do older participants, but in addition to this developmental change, we documented changes in the nature of attention sharing. We studied children 6-8 and 10-14 years old and college students (in all, 104 women and 76 men; 3% Hispanic, 3% Black or African…

Why does visual working memory performance increase with age in childhood? One recent study (Cowan et al., 2010b) ruled out the possibility that the basic cause is a tendency in young children to clutter working memory with less-relevant items (within a concurrent array, colored items presented in one of two shapes). The age differences in memory…

Examined developmental change in the duration of memory for tone pitch in children and adults. In experiment 1, performance on a two-tone comparison task deteriorated across the intertone interval more quickly in younger than in older subjects. Experiment 2 demonstrated that the developmental difference in pitch memory persistence is unlikely to…

Verbal-to-spatial associations in working memory may index a core capacity for abstract information limited in the amount concurrently retained. However, what look like associative, abstract representations could instead reflect verbal and spatial codes held separately and then used in parallel. We investigated this issue in two experiments on…

Established the differential maturation of rapid-speaking durations and the durations of interword pauses in the memory-span-task responses of first, third and fifth graders. Found that a particular memory span is accompanied by different profiles of processing rates in children of different ages. (Author)

Examines short-term memory for spoken words ignored at the time of their presentation. Age differences in the persistence of memory was found. Suggests that relatively attention-free properties of short-term memory may change with development in childhood, and priority should be given to distinguish maturational and experiential influences on…