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Development of brain mechanisms for processing affective touch

Björnsdotter, Malin (författare)
Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology,Department of Physiology, Institute for Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
Gordon, Ilanit (författare)
Child Study Center, Yale University, New Haven, CT, USA
Pelphrey, Kevin. A. (författare)
Child Study Center, Yale University, New Haven, CT, USA
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Olausson, Håkan, 1965 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Institute of Neuroscience and Physiology, Department of Physiology,Department of Physiology, Institute for Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
Kaiser, Martha D. (författare)
Child Study Center, Yale University, New Haven, CT, USA
visa färre...
 (creator_code:org_t)
2014
2014
Engelska.
Ingår i: Frontiers in Behavioral Neuroscience. - Lausanne, Switzerland : Frontiers Media SA. - 1662-5153. ; 8:FEB
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Affective tactile stimulation plays a key role in the maturation of neural circuits, but the development of brain mechanisms processing touch is poorly understood. We therefore used functional magnetic resonance imaging (fMRI) to study brain responses to soft brush stroking of both glabrous (palm) and hairy (forearm) skin in healthy children (5-13 years), adolescents (14-17 years), and adults (25-35 years). Adult-defined regions-of-interests in the primary somatosensory cortex (SI), secondary somatosensory cortex (SII), insular cortex and right posterior superior temporal sulcus (pSTS) were significantly and similarly activated in all age groups. Whole-brain analyses revealed that responses in the ipsilateral SII were positively correlated with age in both genders, and that responses in bilateral regions near the pSTS correlated significantly and strongly with age in females but not in males. These results suggest that brain mechanisms associated with both sensory-discriminative and affective-motivational aspects of touch are largely established in school-aged children, and that there is a general continuing maturation of SII and a female-specific increase in pSTS sensitivity with age. Our work establishes a groundwork for future comparative studies of tactile processing in developmental disorders characterized by disrupted social perception such as autism. © 2014 Björnsdotter, Gordon, Pelphrey, Olausson and Kaiser.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Physiology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Neurosciences (hsv//eng)

Nyckelord

Brain
Children
Development
fMRI
Touch

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