Fiberless, Multi-Channel fNIRS-EEG System Based on Silicon Photomultipliers: Towards Sensitive and Ecological Mapping of Brain Activity and Neurovascular Coupling oleh Antonio Maria Chiarelli, David Perpetuini, Pierpaolo Croce, Giuseppe Greco, Leonardo Mistretta, Raimondo Rizzo, Vincenzo Vinciguerra, Mario Francesco Romeo, Filippo Zappasodi, Arcangelo Merla, Pier Giorgio Fallica, Günter Edlinger, Rupert Ortner, Giuseppe Costantino Giaconia