Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/66300
Título: | Brain mechanisms for processing discriminative and affective touch in 7-month-old infants |
Autor(es): | Miguel, Helga O. Lisboa, Isabel C. Gonçalves, Óscar F. Sampaio, Adriana |
Palavras-chave: | Somatosensory processing Brain development fNIRS Infancy |
Data: | 2019 |
Editora: | Elsevier Science Ltd |
Revista: | Developmental Cognitive Neuroscience |
Resumo(s): | Affective touch has been associated with affiliative behavior during early stages of infant development; however, its underlying brain mechanisms are still poorly understood. This study used fNIRS (functional near-infrared spectroscopy) to examine both affective and discriminative touch in 7-month-old infants (n = 35). Infants were provided affective stimuli on the forearm for 10 sec followed by a 20 sec rest period. The protocol was repeated for discriminative touch, and both affective and discriminative stimuli were given in a counterbalanced order. Brain activation (oxy-hemoglobin and deoxy-hemoglobin levels) in the somatosensory and temporal regions was registered during administration of the stimuli. There was an increase in oxy-hemoglobin and decrease in deoxyhemoglobin only in the somatosensory region in response to both affective and discriminative touch. No other activations were found. Seven-month-old infants' brain activation in the somatosensory cortex was similar for both discriminative and affective touch, but the stimuli did not elicit any activation in the temporal region/pSTS. Our study is the first to suggest that 7-month-old infants do not yet recruit socio-emotional brain areas in response to affective touch. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/66300 |
DOI: | 10.1016/j.dcn.2017.10.008 |
ISSN: | 1878-9293 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CIPsi - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Brain mechanisms for processing discriminative and affective touch in 7-month-old infants.pdf Acesso restrito! | 2,75 MB | Adobe PDF | Ver/Abrir |