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Beck, Sarah R.; Apperly, Ian A.; Chappell, Jackie; Guthrie, Carlie; Cutting, Nicola – Cognition, 2011
Tool making evidences intelligent, flexible thinking. In Experiment 1, we confirmed that 4- to 7-year-olds chose a hook tool to retrieve a bucket from a tube. In Experiment 2, 3- to 5-year-olds consistently failed to innovate a simple hook tool. Eight-year-olds performed at mature levels. In contrast, making a tool following demonstration was easy…
Descriptors: Experiments, Children, Thinking Skills, Age Differences
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van Swieten, Lisa M.; van Bergen, Elsje; Williams, Justin H. G.; Wilson, Andrew D.; Plumb, Mandy S.; Kent, Samuel W.; Mon-Williams, Mark A. – Journal of Experimental Psychology: Human Perception and Performance, 2010
Grip selection tasks have been used to test "planning" in both autism and developmental coordination disorder (DCD). We differentiate between "motor" and "executive" planning and present a modified motor planning task. Participants grasped a cylinder in 1 of 2 orientations before turning it clockwise or anticlockwise.…
Descriptors: Autism, Developmental Disabilities, Perceptual Motor Coordination, Cognitive Processes
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Ladd, Mara V.; Luiselli, James K.; Baker, Lorianne – Child & Family Behavior Therapy, 2009
Children with autism frequently display self-injurious behavior (SIB), but skin picking--a less severe topography of SIB--has not been the focus of much clinical research. The present study evaluated a home-based intervention that was implemented with a 9-year-old girl who had autism and picked her fingers with resulting tissue damage. The…
Descriptors: Intervention, Self Destructive Behavior, Autism, Children
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Lanovaz, Marc J.; Fletcher, Sarah E.; Rapp, John T. – Behavior Modification, 2009
We used a three-component multiple-schedule with a brief reversal design to evaluate the effects of structurally unmatched and matched stimuli on immediate and subsequent vocal stereotypy that was displayed by three children with autism spectrum disorders. For 2 of the 3 participants, access to matched stimuli, unmatched stimuli, and music…
Descriptors: Auditory Stimuli, Stimulation, Autism, Identification