A COMPARISON OF THE FOCAL ATTENTION AND CONTEXTUAL THEORIES AS THEY RELATE TO THE GRAPHIC SIMILARITY AND THE LEVEL OF FREQUENCY OF THE WORDS TAUGHT

Two theories which have been advanced for the purpose of explaining word recognition learning through visual exposure are the focal attention and contextual theories. Previous research has not provided a clear‐cut answer as to which theory best explains this type of word learning. The present study was undertaken to examine the effect of the message level of the context in which the word was presented on the immediate and delayed recall of first graders. The subjects were 160 first graders from three schools randomly assigned to one of four varying instructional methods. The four words taught were presented in lists which varied in graphic similarity and in frequency. A three‐way analysis of variance was performed on the words learned and on the words remembered. The results indicated that only frequency and graphic similarity had a significant effect on immediate recall and only graphic similarity significantly affected the delayed recall. It was concluded that neither the focal attention or contextual theory offered a powerful explanation for words learned through visual exposure.     

Highs and Lows in Motor Control Development

Abstract

Motor control is classically described as relying on two components: anticipatory control (feedforward processing) and online control (feedback processing). Here we aimed to unveil the developmental steps of both feedback and feedforward control in 5–10 years old children, using a simple and ecological task. We manipulated object’s weight in a reach-to-displace paradigm. When the weight was known before lifting it, anticipatory processes were quantifiable during the reaching phase. Conversely, an unknown weight triggered online corrections during the displacing phase. Movement kinematics revealed that children anticipate this objet property as young as 5 y-o. This anticipation becomes adequate around 7 y-o and is paralleled by poor online corrections. This simple yet relevant paradigm should allow quantifying deviations from neurotypical patterns in disorders of motor control.     

Schema‐driven source misattribution errors: remembering the expected from a witnessed event

When recollection is difficult, people may use schematic processing to enhance memory. Two experiments showed that a delay between witnessing and recalling a visual sequence increases schematic processing, resulting in stereotypic memory errors. Participants watched a slide show of a man and a woman performing stereotype‐consistent and stereotype‐inconsistent actions, followed by an immediate or delayed memory test. Over a two‐day delay, stereotype‐inconsistent actions were increasingly misremembered as having been performed by the stereotype‐consistent actor (Experiment 1). All the source errors increased, regardless of stereotype consistency, when the wrong actor was suggested. When we merely suggested that ‘someone’ performed an action (Experiment 2), only stereotype‐consistent source errors were increased. Although visual scenes are typically well remembered, these results suggest that when memory fades, reliance on schemata increases, leading to increased stereotypic memory errors. Copyright © 2007 John Wiley & Sons, Ltd.