Technical Program

Paper Detail

Paper: PS-1A.4
Session: Poster Session 1A
Location: Symphony/Overture
Session Time: Thursday, September 6, 16:30 - 18:30
Presentation Time:Thursday, September 6, 16:30 - 18:30
Presentation: Poster
Paper Title: Theta phase at encoding leads to successful memory formation
Manuscript:  Click here to view manuscript
Authors: Josefina Cruzat, Mireia Torralba, Manuela Ruzzoli, Gustavo Deco, Salvador Soto-Faraco, Universitat Pompeu Fabra, Spain
Abstract: Several studies in perception and attention have shown cyclic alternations in behavioural performance (Busch, Dubois, & VanRullen, 2009; de Graaf et al., 2013; Klimesch, Sauseng, & Hanslmayr, 2007; Mathewson, Gratton, Fabiani, Beck, & Ro, 2009; Palva & Palva, 2007; VanRullen, 2016). The main idea behind this phenomenon is that spontaneous low frequency oscillations in neural activity gate incoming sensory information, producing peaks and troughs that correlate with cycles of favorable and unfavorable states for perceptual and attentional processing. Hence, variability in behavioural performance could depend on the particular oscillation phase at which the stimulus is presented. In this study, we extend this idea to the memory domain. We used an audio-visual cue as a resetting signal to pace the moment of presentation of associated pairs of images in a memory encoding block. We found that memory success (hit rate) in a subsequent recognition block fluctuated at ~5 Hz, as a function of the moment at which the memory item had been encoded with respect to the cue.