A Virtual Reality Study of Help Recognition and Metacognition with an Affective Agent. - Ali Oker; Matthieu Courgeon; Elise Prigent; Victoria Eyharabide; Nadine Bazin; Mathieu Urbach; Christine Passerieux; Jean-Claude Martin; Michel-Ange Amorim; Eric Brunet-Gouet (Int. J. Synth. Emot., 2015)