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.
FNIRS measure of transitive and intransitive gesture execution, observation and imagination in ecological setting: A pilot study / M.E. Vanutelli, L. Cortesi, E. Molteni, M. Balconi (PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY). - In: 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)[s.l] : IEEE, 2015 Nov 05. - ISBN 9781424492718. - pp. 3484-3487 (( Intervento presentato al 37. convegno Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) tenutosi a Milano nel 2015.
|Titolo:||FNIRS measure of transitive and intransitive gesture execution, observation and imagination in ecological setting: A pilot study|
VANUTELLI, MARIA ELIDE (Primo)
|Parole Chiave:||Near-infrared spectroscopy; parietal cortex; functional nirs; motor imagery; hand actions; tool use; activation; simulation; imitation; movements|
|Settore Scientifico Disciplinare:||Settore M-PSI/01 - Psicologia Generale|
Settore M-PSI/02 - Psicobiologia e Psicologia Fisiologica
|Data di pubblicazione:||5-nov-2015|
|Enti collegati al convegno:||IEEE Engineering in Medicine and Biology Society|
Institute of Electrical and Electronic Engineers (IEEE)
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1109/EMBC.2015.7319143|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|