Neuromagnetic recordings reveal the temporal dynamics of auditory spatial processing in the human cortex
Section snippets
Acknowledgement
This study was supported by the Academy of Finland (Proj. no. 203470, 1201602).
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2022, NeuropsychologiaCitation Excerpt :Earlier studies suggested a general predictive role of the IFC by showing the IFC's contributions to regularity extraction (Tse et al., 2007, 2012; Vossel et al., 2011) and predictions of action outcomes (Avenanti et al., 2017). Evidence supporting the IFC-STC network in pre-attentive change detection was demonstrated by mismatch responses in both brain regions using electroencephalography with source localization (EEG; Garrido et al., 2008; Yago et al., 2001), magnetoencephalography (MEG; Rinne et al., 2000; Tiitinen et al., 2006; Wacongne et al., 2011), electrocorticography (ECoG; Dürschmid et al., 2016), functional magnetic resonance imaging (fMRI; Doeller et al., 2003; Molholm et al., 2005; Opitz et al., 2002; Rinne et al., 2005; Schall et al., 2003), positron-emission tomography (PET; Müller et al., 2002) and event-related optical signal (EROS; Tse and Penney, 2007, 2008; Tse et al., 2006, 2013, 2015). EROS captures the change in optical properties associated with neuronal brain response and is able to localize brain responses temporally and spatially in the millisecond and sub-centimeter range, respectively (Gratton and Fabiani, 2010).
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2016, NeuropsychologiaCitation Excerpt :However, the magnitude of the P2 wave depended on the spatial change pattern: stronger P2 responses were elicited by Step stimuli as compared to those evoked by Slow and Fast motion. This finding is consistent with the results of our previous MMN study (Shestopalova et al., 2015) and corroborate the view that N1 response may encode mostly the sound energy onset, while sound movement processing may be captured by the P2 deflection (Getzmann, 2011; Tiitinen et al., 2006). The Step stimulus represented an infinitely large spatial change per time, so its processing can be interpreted using the concept of a “temporal window”, which implies that the response of the binaural system is based on integration of interaural information across time by a leaky integrator.
Monaural and binaural contributions to interaural-level-difference sensitivity in human auditory cortex
2015, NeuroImageCitation Excerpt :That hypothesis is also consistent with human lesion studies that demonstrate bilateral localization deficits following right-AC damage, but minimal localization deficits following left-AC damage (e.g., Griffiths et al., 1997; Zatorre and Penhune, 2001; Spierer et al., 2009). Puzzlingly, the opposite pattern (i.e., ipsilateral responses in left but not right AC) has been reported in several MEG-adaptation studies (Palomäki et al., 2005; Tiitinen et al., 2006; Salminen et al., 2010). Briley et al. (2013) employed a continuous stimulation paradigm in which EEG responses were compared across shifts in sound location that varied in magnitude from 0 to 120 degrees azimuth.
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2015, Brain and LanguageCitation Excerpt :As observed in source reconstruction studies, the MMN is generated by a temporo-frontal network (for a review, see Garrido, Kilner, Stephan, & Friston, 2009). This network includes regions in the temporal lobe – bilateral auditory cortices (Deouell, Bentin, & Giard, 1998; Grau, Fuentemilla, & Marco-Pallarés, 2007; Jemel, Achenbach, Müller, Röpcke, & Oades, 2002; Tiitinen et al., 2006), and prefrontal lobe (e.g., Giard et al., 1990; Opitz, Rinne, Mecklinger, Von Cramon, & Schröger, 2002). Both regions have been shown to contribute to speech sound perception.