TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Lindenberger, Ulman A1 - Mayr, Ulrich A1 - Krampe, Ralf A1 - Baltes, Paul B. T1 - Max-Planck-Institut für Bildungsforschung Berlin T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 172 Y1 - 1993 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-41124 ER - TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Baltes, Paul B. T1 - On the locus and process of magnification of age differences during mnemonic training N2 - The focus of this study was on developmental reserve capacity in old age as revealed by testing-thelimits. We examined (a) the time course of training-related magnification of age differences in serial word recall and (b) predictability of training gains by pretest individual differences in cognitive abilities. In 20 sessions, young (n = 18) and old (n = 19) adults were taught to recall lists of 30 words using the Method of Loci. Age differences were magnified early in practice at long presentation times (20 s and 15 s per word) and later at 5 s per word. Regression of posttraining scores on various pretraining abilities revealed significant effects of digit symbol substitution. Also, consistent with the assumption of age-related decline in developmental reserve capacity, the unique variance in serial word recall associated with age group became more salient as the training unfolded. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 155 Y1 - 1990 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-40336 ER - TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Baltes, Paul B. T1 - Testing-the-limits and the study of adult age differences in cognitive plasticity of a mnemonic skill N2 - Investigated the range and limits of cognitive reserve capacity as a general approach to the understanding of age differences in cognitive functioning. Testing-the-limits is proposed as a research strategy, Data are reported from 2 training studies involving old (65 to 83 years old) and young adults (19 to 29 years old). The training, designed to engineer an expertise in serial word recall, involved instruction and practice in the Method of Loci. Substantial plasticity was evident in pretest to posttest comparisons. Participants raised their serial word recall several times above that of pretest baseline. Age-differential limits in reserve capacity were evident in amount of training gain but not in responses to conditions of increased test difficulty (speeded stimulus presentation). Group differences were magnified by the training to such a degree that age distributions barely overlapped at posttests. Testing-the-limits offers promise in terms of understanding the extent and nature of cognitive plasticity. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 153 Y1 - 1989 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-40311 ER - TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Hechhausen, Jutta A1 - Bates, Paul B. T1 - Mnemonic training for the acquisition of skilled digit memory N2 - This article outlines a research strategy for investigating, in a laboratory setting, the acquisition and the "limits" of a cognitive skill. Expert digit memory is used as an illustration. Two participants with initial average digit- and word-span memory were trained to memorize and reproduce strings of 80 to 90 digits presented at 10- to 1-sec rates. The instruction and training program, based on a theory of skilled memory, focused on three components: (a) acquisition of a mnemonic system (i.e., recoding digits into historical dates or concrete nouns), (b) use of a long-term memory retrieval structure (i.e., instruction in the Method of Loci), and (c) improvement in processing speed. After 86 experimental sessions, one participant recalled 90 random digits presented at a 1-sec rate. The digits were, however, constrained to be compatible with the participant's historical knowledge. The second participant recalled 80 random digits presented at a 5-sec rate after 70 sessions. Speed of encoding and retrieval processing was the only component that required extensive practice for skilled digit-memory acquisition. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 148 Y1 - 1987 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-40252 ER - TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Baltes, Paul B. T1 - Testing-the-limits, expertise, and memory in adulthood and old age N2 - This research has three interrelated foci: (i) engineering and testing a cognitive model of expert memory, (ii) the study of intellectual reserve capacity and (iii) the use of a testing-the-limits methodology to magnify and delineate age differences in limits of reserve capacity. The assumption is that age differences are magnified if studied at high levels of expertise or task difficulty. Results from age-comparative point training studies in expert memory are reported. Both young and elderly subjects reached high levels of skilled memory, confirming the model. However, despite this sizeable reserve capacity, when compared to IQ-eguivalent young adults, superior elderly showed decline in upper limits of function. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 147 Y1 - 1986 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-39063 ER - TY - GEN A1 - Kliegl, Reinhold A1 - Smith, Jacqui A1 - Heckhausen, Jutta A1 - Baltes, Paul B. T1 - Ausbildung zum Gedächtniskünstler : ein experimenteller Zugang zur Überprüfung von Theorien kognitiven Lernens und Alterns N2 - Der hier berichtete Forschungsansatz kombiniert entwicklungs- und kognitionspsychologische Fragestellungen. Das entwicklungspsychologische Ziel war, Potential und Grenzen latenter kognitiver Leistungsreserven bei jungen und älteren Erwachsenen sichtbar zu machen. Eine systematische Heranführung an Leistungsgrenzen sollte außerdem die unterschiedliche Alterssensitivität kognitiver Prozesse verdeutlichen und zu einer Vergrößerung interindividueller Unterschiede führen. Das kognitionspsychologische Ziel war, die Genese kognitiver Expertise unter Laborbedingungen zu simulieren, wobei vor allem die Transformation von Laien- in Expertenwissen untersucht werden sollte. Diese Überlegungen wurden in einem Trainingsprogramm überprüft, in dessen Verlauf junge und ältere Erwachsene in einer Gedächtniskunst für das Behalten von Zufallszahlen und Wortlisten unterwiesen wurden. Die Brauchbarkeit dieses experimentellen Paradigmas für die Überprüfung der theoretischen Fragen wird durch Ergebnisse aus vier Einzelfallstudien belegt. N2 - This research examines developmental and cognitive psychological questions. The developmental interest is to demonstrate the potential and limits of latent cognitive reserve in young and older adults. A testing-the-limits methodology is advocated to identify differential sensitivity to aging in cognitive processes and to magnify interindividual differences. The cognitive psychological goal is to simulate the acquisition of cognitive expertise in a laboratory situation and, in particular, to study processes that transform novice to expert knowledge. In the context of a training program that was designed to test these assumptions, young and older adults acquired a memory expertise that allowed recall of random digit strings and lists of words. Results from four case studies are used to illustrate and to document the utility of this research paradigm. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 146 Y1 - 1986 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-40247 ER -