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Frontal lobe activation during object permanence: data from near-infrared spectroscopy
Abigail A Baird1, Jerome Kagan, Thomas Gaudette
1Laboratory of Infant Study, Department of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA.
Neuroimage
|August 31, 2002
Summary
Infants develop object permanence, the ability to know objects exist even when unseen, as their frontal lobes mature. This cognitive milestone correlates with increased hemoglobin in the frontal cortex, observed noninvasively.
Area of Science:
- Developmental neuroscience
- Cognitive development
- Neuroimaging
Background:
- Object permanence is a key cognitive milestone in infant development.
- Frontal lobe maturation is crucial for object permanence.
- Collecting neurophysiological data from infants is challenging.
Purpose of the Study:
- To investigate the relationship between frontal cortex activity and object permanence in infants.
- To utilize noninvasive neuroimaging techniques to study infant cognition.
Main Methods:
- Near-infrared spectroscopy (NIRS) was used to measure hemoglobin concentration changes in the frontal cortex.
- NIRS allowed for noninvasive assessment in awake, behaving infants.
Main Results:
- The emergence of object permanence was associated with increased hemoglobin concentration in the frontal cortex.
- This finding provides neurophysiological evidence linking frontal lobe activity to object permanence.
Conclusions:
- Frontal cortex maturation, indicated by increased hemoglobin, is linked to the development of object permanence.
- NIRS is a viable method for studying cognitive development in infants.