In this article, we present data from two brain-damaged patients with calculation impairments
in support of claims about the cognitive mechanisms underlying simple arithmetic …

A number of theories of mental arithmetic suggest that the ability to solve simple addition
and subtraction problems develops from an algorithmic strategy toward a strategy based on …

In 2 experiments, younger and older adults were presented with simple multiplication
problems (eg, 4× 7= 28 and 5× 3= 10) for their timed, true or false judgments. All of the …

We document the dissociation of preserved calculation skills in a patient with impaired
auditory short-term memory. The patient (MRF) had a memory span of three digits …

Recent behavioral investigations indicate that the processes underlying mental arithmetic
change systematically with practice from deliberate, conscious calculation to automatic …

Evaluated 40 undergraduates' performance on a simple mental multiplication task and the
adequacy of several different models of mental addition as extended to multiplication. Exps I …

The cognitive underpinnings of arithmetic calculation in children are noted to involve
working memory; however, cognitive processes related to arithmetic calculation and working …

Abstract Working memory (Baddeley and Hitch 1974) incorporates the notion of a visuo-
spatial sketch pad; a mechanism thought to be specialized for short-term storage of visuo …

We report a single case study of a brain-damaged patient with impaired arithmetic
performance. Three principal findings are presented: First, in a task involving production of …

Abstract 16 young, 16 middle-aged, and 16 older adults practiced an algorithm for squaring
2-digit numbers for 6 sessions. Errors were classified as failures of working-memory …