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28th International Congress of Psychology August 8 ... - U-netSURF

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and hypotheses about the role <strong>of</strong> sleep for the consolidation <strong>of</strong> these skilled behaviors.<br />

1011.3 The formation <strong>of</strong> declarative memory during human sleep, J. Born, University <strong>of</strong><br />

Lübeck, Lübeck, Germany<br />

The consolidation <strong>of</strong> hippocampus-dependent declarative memory has been shown to benefit from<br />

sleep, in particular from slow-wave sleep (SWS). Recent studies outlined some <strong>of</strong> the underlying<br />

neurophysiological conditions. Slow oscillatory EEG activity and spindle activity arising from<br />

thalamo-cortical circuitry in close conjunction with a hippocampal replay <strong>of</strong> recent memories<br />

probably form critical parts <strong>of</strong> the process. Humans display enhanced spindle activity during<br />

SWS-rich sleep after intense declarative learning. Also, declarative memory formation during<br />

SWS is blocked by cholinergic agonists or glucocorticoids, suppressing hippocampo-neocortical<br />

signal transfer. Data speak for an active consolidation <strong>of</strong> declarative memories based on a<br />

hippocampo-neocortical dialogue.<br />

1011.4 Functional mechanisms <strong>of</strong> memory consolidation in the sleeping brain. Contributions <strong>of</strong><br />

functional brain imaging, P. Peigneux, University <strong>of</strong> Liege, Liege, Belgium<br />

The functional mechanisms by which recent memories are consolidated in the sleeping brain<br />

remain undetermined. In animals, potential mechanisms have been advocated including<br />

ponto-geniculo-occipital (PGO) waves during REM sleep, spindles during Stage II sleep, or<br />

synchronized slow oscillations during slow wave sleep. Functional brain imaging studies have<br />

highlighted the regional cerebral correlates <strong>of</strong> similar mechanisms in humans. Likewise, we have<br />

shown the experience-dependent reactivation during sleep <strong>of</strong> the neural circuitry activated during<br />

the learning episode, in a memory-type dependent manner. Correspondence between animal and<br />

human data suggest the implication <strong>of</strong> fundamental sleep mechanisms in human memory<br />

consolidation.<br />

1012 INVITED SYMPOSIUM<br />

Development <strong>of</strong> autobiographical memory in social-cultural context<br />

Convener and Chair: K. Nelson, USA<br />

1012.1 An integrative model <strong>of</strong> lifelong memory development, H. Welzer,<br />

Kulturwissenschaftliches Institute Essen, Essen, Germany<br />

The paper proposes a bio-psycho-social model <strong>of</strong> lifelong memory development. Basically there is<br />

no stage in postnatal human development that is purely biological and independent <strong>of</strong> social<br />

conditions. Vice versa there is no developmental stage without a biological precondition <strong>of</strong><br />

maturation. It becomes apparent that the relative weight <strong>of</strong> sociality, culture, and history increases<br />

with age, which makes autobiographical memory in comparison to other memory systems the<br />

most social system. Against this background the paper gives an outline <strong>of</strong> an interdisciplinary<br />

theory <strong>of</strong> autobiographical memory.<br />

1012.2 Gender as culturally constructed in autobiographical narratives, R. Fivush, Emory<br />

University, Atlanta, GA, USA<br />

Recent conceptualizations <strong>of</strong> culture emphasize the role <strong>of</strong> skilled practice in the socialization <strong>of</strong><br />

culturally critical skills and activities. In this presentation, I explore the ways in which cultural<br />

15

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