Laurie A. McDonough

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The development of conceptual categories from 7 to 11 months of age was explored in 5 experiments using an object-examination task. Infants in this age range categorized the global domains of animals, vehicles, and furniture. Plants and kitchen utensils were tested at 11 months, and these domains were also categorized. When 9-month-olds were tested on(More)
Imitation of events was used to explore the inductive generalizations that 14-month-olds have made about animals, vehicles, and household artifacts. In Experiment 1 infants generalized domain-specific properties such as drinking to animals but not to vehicles, whereas they generalized domain-neutral properties such as going into a building to exemplars from(More)
The traditional view of inductive generalization in infancy is that it rests on perceptual similarity; infants are said to form perceptually based categories, such as dogs and cats, and then to associate various properties with them. Superordinate-level inductions, such as generalizations about animals as a domain, have been considered to be more abstract(More)
We tested amnesic patients, patients with frontal lobe lesions, and control subjects with the deferred imitation task, a nonverbal test used to demonstrate memory abilities in human infants. On day 1, subjects were given sets of objects to obtain a baseline measure of their spontaneous performance of target actions. Then different event sequences were(More)
Three studies assessed the ability of 2-year-olds to use semantic context to infer the meanings of novel nouns and to retain those meanings a day later. In the first experiment, 24 2-year-olds heard novel nouns in sentences that contained semantically constraining verbs (e.g., "Mommy feeds the ferret"). They chose from a set of four novel object pictures to(More)
The first experiment shows that 11-month-olds can encode novel causal events from a brief period of observational learning, and recall much of the information after 24 h. The second experiment, using both a longitudinal and a cross-sectional design, shows recall of the same events after a delay of 3 months. The infants remembered more individual actions(More)
Two experiments were conducted to evaluate symbolic-deficit and memory-deficit hypotheses to account for the cognitive problems seen in children with autism. Experiment 1 tested imitation, in immediate and deferred conditions, of familiar actions with different sets of objects representing the developmental progression from functional to symbolic play. The(More)
An infrared near-field scanning optical microscope (NSOM) is used in a controlled environment chamber to detect water vapor uptake in thin polymer films. A chemically amplified photoresist sample composed of alternating 2 μm lines of the original 1000 nm thick poly-(tert-butylmethacrylate) (PTBMA) and the photochemically modified 500 nm thick(More)
Date The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. Water uptake in polymer photoresists is investigated with a combination of methods. An infrared near-field scanning optical microscope (IR-NSOM) is(More)
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