Reversibility revisited: Stimulus-dependent stability of filial preference in the chick |
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| Institution: | 1. Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand;2. University of Canterbury–Te Whare Wānanga o Waitaha, School of Health Sciences, Christchurch, Canterbury, New Zealand;3. The University of Queensland, School of Clinical Medicine, Primary Care Clinical Unit, Brisbane, Queensland, Australia;4. Department of Nursing, Canterbury District Health Board, Canterbury, Christchurch, New Zealand;5. Department of Psychological Medicine, University of Otago, Christchurch, New Zealand;1. Experimental Psychology, Faculty of Behavioural and Social Sciences, University of Groningen, Groningen, the Netherlands;2. Research School Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, the Netherlands;3. Neuroimaging Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands;4. Laboratory of Experimental Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands;1. Antarctic Conservation and Management Theme, Australian Antarctic Division, Channel Hwy, Kingston 7050, TAS, Australia;2. AsureQuality, 1C Quadrant Drive, Waiwhetu, Lower Hutt 50106, New Zealand;3. ACE-CRC, Antarctic Climate & Ecosystems Cooperative Research Centre, Private Bag 80, Hobart 7001, TAS, Australia;4. CSIRO Marine and Atmospheric Research, Hobart 7000, TAS, Australia;5. School of Earth, Environmental and Biological Sciences, Faculty of Science and Engineering, Queensland University of Technology, Brisbane, QLD, Australia;1. Center for Brain Science and Learning Difficulties, CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China;2. Department of Psychology, University of Chinese Academy of Sciences, Beijing, 100049, China;3. Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100191, China;4. National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100191, China;5. School of Psychology, Shaanxi Normal University and Key Laboratory for Behavior and Cognitive Neuroscience of Shaanxi Province, Xi''an, 710062, China;1. Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine, France;2. Department of Psychology, University of Victoria, Canada |
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| Abstract: | The reversibility of filial preferences was studied in domestic chicks, Gallus gallus domesticus, using an artificial as well as a more naturalistic imprinting stimulus. Day-old chicks were exposed for 2 h to either a rotating stuffed jungle fowl or a rotating red box. Two hours later their preferences were tested in a simultaneous choice test (test I), involving the box and the fowl. The next day, the chicks were trained and tested (test II) as before, except box-trained chicks were now exposed to the fowl and vice versa. In three different experimental groups, the relative attractiveness of the two stimuli (as measured in test I) was varied by altering the light intensity of the red box. In the chicks trained with the box and subsequently exposed to the fowl, there was a significant decrease in mean preference for the box from test I to test II. In contrast, the preference of the chicks trained with the stuffed fowl were not affected by subsequent exposure to the red box. This differential reversibility was also found when, in test I, the preference for the box was significantly higher than the preference for the fowl. These results support a model of the formation of filial preference as an interaction between acquired preference and a developing predisposition for a particular class of stimuli. |
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