Memory

311.

Representation of statistical properties.

Everyday scenes often contain sets of similar objects. Perceptual representations may summarize these with statistical descriptors. After determining the psychological mean of two sizes, we measured thresholds for judging the mean with arrays of 12 ...
Sang Chul Chong, Anne Treisman (Vision Res, 200302)
representation-statistical-properties.asp

312.

Caffeine reversal of ethanol effects on the multiple sleep latency test, memory, and psychomotor performance.

Caffeine has been shown to reverse some of the performance-impairing effects of ethanol. However, it is not known whether this antagonistic effect of caffeine is mediated by a reduction in sleepiness. The present study assessed physiological ...
Christopher L Drake, Timothy Roehrs, Lauren Turner, Holly M Scofield, Thomas Roth (Neuropsychopharmacology, 200302)
caffeine-reversal-ethanol-effects-multiple-sleep-latency-test-memory.asp

313.

Cellular and molecular connections between sleep and synaptic plasticity.

The hypothesis that sleep promotes learning and memory has long been a subject of active investigation. This hypothesis implies that sleep must facilitate synaptic plasticity in some way, and recent studies have provided evidence for such a function. Our ...
Joel H Benington, Marcos G Frank (Prog Neurobiol, 200302)
cellular-molecular-connections-sleep-synaptic-plasticity.asp

314.

Signal strength determines the nature of the relationship between perception and working memory.

Neurophysiological and behavioral studies have shown that perception and memory share neural substrates and functional properties. But are perception and the active working memory of a stimulus one and the same? To address this question in the spatial ...
Bhavin R Sheth, Shinsuke Shimojo (J Cogn Neurosci, 200302)
signal-strength-determines-nature-relationship-perception-working.asp

315.

Course of illness, hippocampal function, and hippocampal volume in major depression.

Studies have examined hippocampal function and volume in depressed subjects, but none have systematically compared never-treated first-episode patients with those who have had multiple episodes. We sought to compare hippocampal function, as assessed by ...
Glenda M MacQueen, Stephanie Campbell, Bruce S McEwen, Kathryn Macdonald, Shigeko Amano, Russell T Joffe, Claude Nahmias, L Trevor Young (Proc Natl Acad Sci U S A, 200302)
course-illness-hippocampal-function-hippocampal-volume-major.asp

316.

Working memory and fear conditioning.

Previous studies of associative learning implicate higher-level cognitive processes in some forms of classical conditioning. An ongoing debate is concerned with the extent to which attention and awareness are necessary for trace but not delay eye-blink ...
Ronald McKell Carter, Constanze Hofstotter, Naotsugu Tsuchiya, Christof Koch (Proc Natl Acad Sci U S A, 200302)
working-memory-fear-conditioning.asp

317.

Implicit memory bias and trait anxiety: a psychophysiological analysis.

The effect of threatening words and anxiety upon implicit memory performance was investigated. It was predicted that anxious individuals would show a bias to threat-related material. In addition, psychophysiological measures were obtained to assess the ...
Lesley K Harrison, Graham Turpin (Biol Psychol, 200302)
implicit-memory-bias-trait-anxiety-psychophysiological-analysis.asp

318.

The impact of different directed forgetting instructions on implicit and explicit memory: new evidence from a modified process dissociation procedure.

In contrast to previous research on directed forgetting, the present studies adopted a recent modification of the process dissociation procedure (Jacoby, 1991; Richardson-Klavehn & Gardiner, 1995) to accommodate the cross-contamination of memory test ...
Daniel David, Richard J Brown (Q J Exp Psychol A, 200302)
impact-different-directed-forgetting-instructions-implicit-explicit.asp

319.

Brain imaging of language plasticity in adopted adults: can a second language replace the first?

Do the neural circuits that subserve language acquisition lose plasticity as they become tuned to the maternal language? We tested adult subjects born in Korea and adopted by French families in childhood; they have become fluent in their second language ...
C Pallier, S Dehaene, J-B Poline, D LeBihan, A-M Argenti, E Dupoux, J Mehler (Cereb Cortex, 200302)
brain-imaging-language-plasticity-adopted-adults-second-language.asp

320.

Does active leisure protect cognition? Evidence from a national birth cohort.

Social, physical and intellectual activities are thought to facilitate cognitive performance and slow the rate of age associated cognitive decline, but little is known about this association in younger adulthood. We used multiple regression to test the ...
Marcus Richards, Rebecca Hardy, Michael E J Wadsworth (Soc Sci Med, 200302)
active-leisure-protect-cognition-evidence-national-birth-cohort.asp