Developmental Changes in the Scanning of Faces by Young Infants

Mothers’ provision of utterances with internal state words has been shown to influence infants’ acquisition of internal state vocabulary and has been proposed to foster preschoolers’ theory of mind development. In this article the authors examine maternal internal state speech during free play with infants at 13, 17, and 21 months. The study assessed developmental changes in the frequency and complexity of the mothers’ utterances referencing perception, volition, disposition, and cognition. Mothers’ use of internal state words, especially volition and cognition words, increased with age. Internal state utterances were longer than utterances without internal state words, and more than half of all cognition and two-thirds of all volition utterances were syntactically complex. Mothers’ production of utterances with internal state words was related to their overall MLUs whereas their production of utterances without was not. Thus, mothers do not simplify utterances when they talk about internal states, even with young infants, and mothers’ growing use of internal state words as their infants age may partially explain increases in their overall utterance lengths during the second year of life.

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Young Infants' Sensitivity to Social Contingency from Mother and Stranger: Developmental Changes

Proceedings. The 4nd International Conference on Development and Learning, 2005. ◽

10.1109/devlrn.2005.1490971 ◽

2005 ◽

Cited By ~ 2

Author(s):

M. Okanda ◽

S. Itakura

Keyword(s):

Developmental Changes ◽

Social Contingency ◽

Young Infants

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Spherulitic crystal growth in the prodissoconch larval of Crassostrea virginica

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100076263 ◽

1983 ◽

Vol 41 ◽

pp. 518-519

Author(s):

George G. Cocks ◽

Louis Leibovitz ◽

DoSuk D. Lee

Keyword(s):

Crystal Structure ◽

Crassostrea Virginica ◽

Crystal Orientation ◽

Developmental Changes ◽

Gastrula Stage ◽

Orthorhombic Crystal ◽

Orthorhombic Crystal Structure ◽

Stages Of Growth ◽

Early Stages ◽

Initial Deposition

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.

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Food for Thought on Pediatric Feeding and Swallowing

Perspectives on Swallowing and Swallowing Disorders (Dysphagia) ◽

10.1044/sasd17.3.110 ◽

2008 ◽

Vol 17 (3) ◽

pp. 110-118 ◽

Cited By ~ 5

Author(s):

Joan C. Arvedson

Keyword(s):

Developmentally Appropriate ◽

Evidence Based ◽

Silent Aspiration ◽

Multiple Systems ◽

Young Infants ◽

Adequate Understanding ◽

Nutrition And Hydration ◽

Pediatric Feeding ◽

Areas Of Concern ◽

And Function

Abstract “Food for Thought” provides an opportunity for review of pertinent topics to add to updates in areas of concern for professionals involved with feeding and swallowing issues in infants and children. Given the frequency with which speech-language pathologists (SLPs) make decisions to alter feedings when young infants demonstrate silent aspiration on videofluoroscopic swallow studies (VFSS), the need for increased understanding about cough and its development/maturation is a high priority. In addition, understanding of the role(s) of laryngeal chemoreflexes (LCRs), relationships (or lack of relationships) between cough and esophagitis, gastroesophageal reflux (GER), and chronic salivary aspiration is critical. Decision making regarding management must take into account multiple systems and their interactions in order to provide safe feeding for all children to meet nutrition and hydration needs without being at risk for pulmonary problems. The responsibility is huge and should encourage all to search the literature so that clinical practice is as evidence-based as possible; this often requires adequate understanding of developmentally appropriate neurophysiology and function.

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