Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration.

Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration. Research Abstract Details 

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Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration. Abstract Text:

Over the past 30 years researchers have learned a great deal about the development of object processing in infancy. In contrast, little is understood about the neural mechanisms that underlie this capacity, in large part because there are few techniques available to measure brain functioning in human infants. The present research examined the extent to which near-infrared spectroscopy (NIRS), an optical imaging technique, could be used to assess the relation between object processing and brain functioning. Infants aged 6.5 months were presented with an occlusion event involving objects that differed on many feature dimensions (multi-featural change), differed on shape only (shape change) or color only (color change), or did not differ (control). NIRS data were collected in the occipital and inferior temporal cortex. In the occipital cortex, a significant increase in oxyhemoglobin (HbO(2)) was observed in response to all four events and these responses did not differ significantly from each other. In the inferior temporal cortex, a significant increase in HbO(2 )was observed in the multi-featural and the shape change condition but not in the control condition. An increase was also observed in the color change condition but this increase did not differ significantly from baseline nor did it differ significantly from the response obtained in the control condition. These data were discussed in terms of (a) what they suggest about the neural basis of feature processing in infants and (b) the viability of using NIRS to study brain-behavior relations in infants.

Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration. Publishing Authors By Initials

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Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Developmental science

VOLUME: 11

Page Numbers: 361-70

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ISSN: 1467-7687

DAY: 9

MONTH: May

YEAR: 2008

Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Hemodynamic response to featural changes in the occipital and inferior temporal cortex in infants: a preliminary methodological exploration.

AFFILIATION: Department of Psychology, Texas A&M University, College Station, TX 77843, USA. tgw@psyc.tamu.edu

Country: England

AGENCY: United States NCRR

GRANT: P41-RR14075

ACRONYM: RR

MEDLINETA: Dev Sci

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