Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications
Traditionally, the development of oral feeding is viewed as a continuous, unitary process in which reflex-dominated sucking behavior gives rise to a more varied and volitional feeding behavior. In contrast, we consider the thesis that the infant develops two separable ingestive systems, one for suck...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Pediatrics |
| Online Access: | http://dx.doi.org/10.1155/2012/730673 |
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| author | Jeffrey R. Alberts Rita H. Pickler |
| author_facet | Jeffrey R. Alberts Rita H. Pickler |
| author_sort | Jeffrey R. Alberts |
| collection | DOAJ |
| description | Traditionally, the development of oral feeding is viewed as a continuous, unitary process in which reflex-dominated sucking behavior gives rise to a more varied and volitional feeding behavior. In contrast, we consider the thesis that the infant develops two separable ingestive systems, one for suckling and one for feeding. First, we apply an evolutionary perspective, recognizing that suckling-feeding is a universal, mammalian developmental sequence. We find that in mammalian evolution, feeding systems in offspring were established prior to the evolution of lactation, and therefore suckling is a separable feature that was added to feeding. We next review an experimental literature that characterizes suckling and feeding as separable in terms of their topography, sensory controls, physiological controls, neural substrates, and experience-based development. Together, these considerations constitute a view of “dual ingestive systems.” The thesis, then, is that suckling is not a simple precursor of feeding but is a complete behavior that emerges, forms, and then undergoes a dissolution that overlaps with the emergence of independent feeding. This thesis guides us to focus differently on the challenges of properly managing and facilitating oral ingestion in infants, especially those born preterm, prior to the developmental onset of suckling. |
| format | Article |
| id | doaj-art-010f25515468415cb1b715bd2189b1ed |
| institution | Kabale University |
| issn | 1687-9740 1687-9759 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Pediatrics |
| spelling | doaj-art-010f25515468415cb1b715bd2189b1ed2025-02-03T01:32:10ZengWileyInternational Journal of Pediatrics1687-97401687-97592012-01-01201210.1155/2012/730673730673Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical ImplicationsJeffrey R. Alberts0Rita H. Pickler1Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405, USACincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, MLC 11016, Cincinnati, OH 45229, USATraditionally, the development of oral feeding is viewed as a continuous, unitary process in which reflex-dominated sucking behavior gives rise to a more varied and volitional feeding behavior. In contrast, we consider the thesis that the infant develops two separable ingestive systems, one for suckling and one for feeding. First, we apply an evolutionary perspective, recognizing that suckling-feeding is a universal, mammalian developmental sequence. We find that in mammalian evolution, feeding systems in offspring were established prior to the evolution of lactation, and therefore suckling is a separable feature that was added to feeding. We next review an experimental literature that characterizes suckling and feeding as separable in terms of their topography, sensory controls, physiological controls, neural substrates, and experience-based development. Together, these considerations constitute a view of “dual ingestive systems.” The thesis, then, is that suckling is not a simple precursor of feeding but is a complete behavior that emerges, forms, and then undergoes a dissolution that overlaps with the emergence of independent feeding. This thesis guides us to focus differently on the challenges of properly managing and facilitating oral ingestion in infants, especially those born preterm, prior to the developmental onset of suckling.http://dx.doi.org/10.1155/2012/730673 |
| spellingShingle | Jeffrey R. Alberts Rita H. Pickler Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications International Journal of Pediatrics |
| title | Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications |
| title_full | Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications |
| title_fullStr | Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications |
| title_full_unstemmed | Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications |
| title_short | Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications |
| title_sort | evolution and development of dual ingestion systems in mammals notes on a new thesis and its clinical implications |
| url | http://dx.doi.org/10.1155/2012/730673 |
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