Search

The present experiment investigated differences in processing between young and old adults in a combined visual selection-memory search paradigm. No evidence was found for age-related differences in early visual selective attention. The elderly achieved relatively fast reaction times in the memory search task at the cost of a high error percentage. From these findings, and from the morphology of the event-related potential, it was concluded that old subjects perform controlled memory search more superficially than young subjects. In both old and young subjects high memory load was associated with decreased positivity in the P3 and Slow Wave area. This is interpreted in terms of Okita et al.'s (1985) concept of search negativity. N2 amplitude was found to be larger to non-target trials for both attended and unattended inputs. The latter result is discussed in relation to theories about N2 as an indicator of automatic mismatch detection. [ABSTRACT FROM AUTHOR]

An author and title index for the November 2002 issue of "Psychophysiology" is presented.

Presents the index of author abstracts for the August 2000 issue of the periodical "Psychophysiology".

Author and title index for the November 1998 issue of the journal Psychophysiology has been provided in this article. The article by psychologist Richard J. Davidson is titled "Anterior Electrophysiological Asymmetries, Emotions, and Depression: Conceptual and Methodological Conundrums. Psychologists Tomas Furmark et al. have contributed their article "Functional Neuroanatomical Correlates of Electrodermal Activity: A Positron Emission Tomographic Study" to this issue. The journal also includes the research paper "On the Status of Individual Response Specificity," by researchers Michael Marwitz and Gerhard Stemmler.

Presents the abstracts that will be presented in the poster session of the Society for Psychophysiological Research conference. "Prepulse Inhibition and the Psychological Refractory Period," by Melissa L. Rawley; "Sex Differences in Event Related Brain Responses in Semantic Priming," by Jerome Daltrozzo and Boris Kotchoubey; "Neuroelectric Assessment of Ecstasy Use in Young Adults," by Brian A. Lopez and John Polich.

Presents the abstract topics that will be presented in the symposia and panel discussions of the Society for Psychophysiological Research conference. Emotional Modulation of the Post-Auricular Reflex; Cortical Oscillatory Activity and Memory; Neural Mechanisms for the Regulation of Behavior.