Learning where to look: Electrophysiological and behavioral indices of visual search in young and old subjects

Jong, Huib Looren de; Kok, Albert; Woestenburg, Jaap C.; Logman, C. J. C. M.; Rooy, John C.G.M. van

doi:10.1016/0301-0511(88)90024-5

Cited by 9 publications

(1 citation statement)

References 39 publications

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“…In the older adults, this late positivity was more frontally distributed. We, along with other researchers, have observed this age-related frontal predominance in P3b amplitude to nonverbal stimuli in both the auditory and visual modalities~De Jong, Kok, Woestenburg, Logman, & Van Rooy, 1988;Friedman et al, 1993;Iragui, Kutas, Mitchiner, & Hillyard, 1993;Kutas, Iragui, & Hillyard, 1994;Nielsen-Bohlman & Knight, 1995;Pfefferbaum, Ford, Roth, & Kopell, 1980;Pfefferbaum, Ford, Wenegrat, Roth, & Kopell, 1984;Smith, Michalewski, Brent, & Thompson, 1980;Swick & Knight, 1997; but see Picton, Stuss, Champagne, & Nelson, 1984, for an exception!.…”

Section: Discussionsupporting

confidence: 74%

Memory changes with normal aging: Behavioral and electrophysiological measures

JOYCE¹,

Paller²,

McISAAC³

et al. 1998

Psychophysiol.

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We examined performance in young and elderly on an implicit~lexical decision! and an explicit~recognition! memory test. The difference in lexical decision times between old and new words was equivalent in the two groups, although the elderly were slower. In both groups, recognition accuracy~lower in the elderly! was higher following semantic than nonsemantic encoding, whereas lexical decision times were unaffected. Divergent brain potentials for old and new words during lexical decisions constituted a repetition effect, which reflected greater positivity~200-800 ms! for old words, particularly over the left hemisphere; this effect was smaller and later in the elderly. An electrophysiological marker of enhanced recollection for words from the semantic encoding task took the form of a left-sided positivitỹ 500-800 ms!. The effect was smaller in the elderly than the young, providing an additional index of their impaired recognition processes.

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