Primate learning tasks reveal strong impairments in patients with presenile or senile dementia of the Alzheimer type

Eight subjects with the likely diagnosis of presenile or senile dementia of the Alzheimer type were tested on two frequently used primate learning tasks: a concurrent object discrimination task and a delayed non-match-to-sample task. In addition, various tests for cognitive, mnemonic, perceptual, and language functions were applied. The results suggest a severe decline of the Alzheimer subjects in all measures when compared with 10 control subjects matched for age, gender, and education. The two animal learning tasks revealed strong impairments, thus demonstrating a high sensitivity for the detection and assessment of human amnesic disorders. Implications of these findings for human neuropsychological, and especially comparative neuropsychological, research are discussed.     

The foundation of the institute for experimental psychology at Leipzig University

Summary During the 1979–80 academic year psychologists from all over the world will celebrate the centennial of the Institute for Experimental Psychology at Leipzig University, established by Wilhelm Wundt during the winter of 1879–80. First, this paper will present the historical context in which the laboratory method of research instruction developed in nineteenth-century Germany. Next, Wundt's extensive experience with laboratory research before coming to Leipzig will be described. Finally, the origin, development, and organization of Wundt's laboratory will be chronicled, beginning with his call to Leipzig. The implications of Wundt's achievement for modern psychology will be discussed. Emphasis is placed on the use of archival materials, documents, and eyewitness accounts.A slightly modified version of this paper was presented as an Invited Centennial Lecture at the Annual Meeting of the American Psychological Association in New York on September 4, 1979The preparation of this article was supported by a research award from the Dr. W.W. Kaempfer, the Dean of the College of Arts and Sciences, University of South Alabama, Mobile, Alabama, USA     

Assessing different aspects of pretend play within a play setting: Towards a standardized assessment of pretend play in young children

The present study suggests a method with which to assess the interrelations between different types of pretend play. In contrast to standard methods in this area, the various types of pretend play were measured within an interactive play scenario. The pretend play tasks were included in a semi‐structured play sequence and presented to young children between 24 and 30 months of age (N=30). Self‐ and doll‐directed pretence, object substitution, pretence with realistic objects, and self‐initiated pretend play, as well as the understanding that an object had been given two identities was tested. The capacity for dual representation was assessed by asking for the real and pretend identity of an object. Age differences were found in the overall score for elicited pretence but not for all items separately. Individual items also differed in difficulty and thus are of potential use for assessing intraindividual differences in pretend play. Findings are discussed in the context of current theories and methods concerning the development and assessment of pretend play.