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Direct linkGraf, Frauke; Lamm, Bettina; Goertz, Claudia; Kolling, Thorsten; Freitag, Claudia; Spangler, Sibylle; Fassbender, Ina; Teubert, Manuel; Vierhaus, Marc; Keller, Heidi; Lohaus, Arnold; Schwarzer, Gudrun; Knopf, Monika – Infant and Child Development, 2012
Three-month-old Cameroonian Nso farmer and German middle-class infants were compared regarding learning and retention in a computerized mobile task. Infants achieving a preset learning criterion during reinforcement were tested for immediate and long-term retention measured in terms of an increased response rate after reinforcement and after a…
Descriptors: Foreign Countries, Infants, Middle Class, Learning Processes
Lohaus, Arnold; Keller, Heidi; Lissmann, Ilka; Ball, Juliane; Borke, Joern; Lamm, Bettina – Journal of Genetic Psychology, 2005
In this study, the authors investigated the relation between early social contingency experiences and infants' competencies to detect nonsocial contingencies. In this study of 87 three-month-old infants, the authors operationalized early social contingencies as prompt, contingent maternal responses and coded microanalytically on the basis of…
Descriptors: Foreign Countries, Infants, Mothers, Parent Child Relationship
