fNIRS measure of transitive and intransitive gesture execution, observation and imagination in ecological setting: A pilot study

Michela Balconi, Maria Elide Vanutelli, Erika Molteni

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

To explore the presence of differential cortical hemodynamic activations related to cognitive components of actions, we performed a fNIRS (functional Near-Infrared Spectroscopy) study during Observation (O), Execution (E) and Imagination (I) of complex and meaningful (transitive and intransitive) gestures in ecological setting. A pilot sample of 5 healthy adults underwent an event-related study consisting of these 3 different conditions, with O set as first and followed by a randomized presentation of E or I. fNIRS measurements were performed using a 24 channel array of optodes (8 light injectors and 8 detectors) placed over the contralateral central, centro-parietal, parietal and temporal areas. Results showed that the premotor (PMC) and the sensory-motor cortices (SM1) were recruited selectively during E, with levels of oxygenated hemoglobin (oxy-Hb) higher than the other conditions, while the posterior parietal cortex (PPC) showed increased oxy-Hb levels for both E and O. These data suggest that variations in hemodynamic responses can be attributed to different neural processes underpinning these tasks, with PMC and SM1 being more involved in action preparation and performance, and PPC prevalently dedicated to attentive processes related to the execution and observation of limb movements.
Lingua originaleEnglish
Titolo della pubblicazione ospiteProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Pagine3484-3487
Numero di pagine4
DOI
Stato di pubblicazionePubblicato - 2015
Evento37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Milano
Durata: 25 ago 201529 ago 2015

Serie di pubblicazioni

NomeIEEE ENGINEERING IN MEDICINE AND BIOLOGY ... ANNUAL CONFERENCE PROCEEDINGS

Convegno

Convegno37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CittàMilano
Periodo25/8/1529/8/15

Keywords

  • bio-optics
  • brain models
  • cognition
  • haemodynamics
  • infrared spectroscopy

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