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Full-Text Articles in Psychology

The Testing Effect In Recognition Memory: A Dual Process Account, Jason C.K. Chan, Kathleen B. Mcdermott Mar 2007

The Testing Effect In Recognition Memory: A Dual Process Account, Jason C.K. Chan, Kathleen B. Mcdermott

Jason C.K. Chan

The testing effect, or the finding that taking an initial test improves subsequent memory performance, is a robust and reliable phenomenon--as long as the final test involves recall. Few studies have examined the effects of taking an initial recall test on final recognition performance, and results from these studies are equivocal. In 3 experiments, we attempt to demonstrate that initial testing can change the ways in which later recognition decisions are executed even when no difference can be detected in the recognition hit rates. Specifically, initial testing was shown to enhance later recollection but leave familiarity unchanged. This conclusion emerged …


Accurate Vocal Compensation For Sound Intensity Loss With Increasing Distance In Natural Environments, Pavel Zahorik, Jonathan W. Kelly Jan 2007

Accurate Vocal Compensation For Sound Intensity Loss With Increasing Distance In Natural Environments, Pavel Zahorik, Jonathan W. Kelly

Jonathan W. Kelly

Human abilities to adjust vocal output to compensate for intensity losses due to sound propagation over distance were investigated. Ten normally hearing adult participants were able to compensate for propagation losses ranging from −1.8 to −6.4dB/doubling source distance over a range of distances from 1 to 8m. The compensation was performed to within 1.2dB of accuracy on average across all participants, distances, and propagation loss conditions with no practice or explicit training. These results suggest that natural vocal communication processes of humans may incorporate tacit knowledge of physical sound propagationproperties more sophisticated than previously supposed.