Neuromagnetic responses reflect the temporal pitch change of regular interval sounds

Human Auditory Cortical Processing of Transitions Between ‘Order’ and ‘Disorder’

“…Interestingly, these transition responses are similar to the properties of the 'pitch onset response' (POR; Krumbholz, Patterson, Seither-Preisler, Lammertmann and Lütkenhöner 2003;Gutschalk, Patterson, Scherg, Uppenkamp, and Rupp 2004;Ritter, Gunter Dosch, Specht and Rupp 2005;Chait, Poeppel and Simon 2006). The POR, hypothesized to reflect cortical pitch processing mechanisms, is evoked by transitions between irregular click trains, which do not have a pitch and regular click trains which are perceived to have a sustained temporal pitch (Gutschalk et al, 2004) or by transitions between white noise and iterated rippled noise (Krumbholz et al, 2003).…”

Neuromagnetic representation of musical register information in human auditory cortex

“…Complimentary results were also obtained with regular interval noise and neuromagnetic techniques by Ritter et al (2005). Moreover, von Kriegstein et al (2010) reported that glottal PR cues evoke specific blood oxygen level-dependent (BOLD) responses in antero-lateral and postero-medial regions of Heschl's gyrus.…”

“…Specifically, it was hypothesised (i) that PR-related activity would arise in the lateral aspect of Heschl's gyrus, (ii) that RS-related activity would arise in one of the areas identified by von Kriegstein and colleagues posterior to HG, and (iii) that in both cases, the activity would be observed in an early component of the AEF, namely, the N1m. The auditory N1m wave has previously been reported to vary with changes in both spectral and temporal (Gutschalk et al, 2002;Ritter et al, 2005) properties of sound.…”

“…PR is closely linked to the perception of pitch; decreasing the PR of a sound leads to a downward shift of pitch. A series of experiments involving functional magnetic resonance imaging (fMRI) and magnetoencephalography (MEG) has identified a region of auditory cortex toward the antero-lateral end of Heschl's gyrus (HG) that is associated with temporal regularity processing in a variety of musical and non-musical sounds (e.g., Griffiths et al, 1998;Patterson et al, 2002;Gutschalk et al, 2002;Krumbholz et al, 2003;Ritter et al, 2005). The MEG experiments show that changes in temporal regularity are reflected in the N1m, which is a relatively early component of the auditory evoked field (AEF).…”

Cortical representations of pitch in monkeys and humans

“…Several recent findings indicate that there is a specialized region in the auditory cortex of primates that is involved in the representation of pitch [2][3][4][5][6][7][8][9][10]. Here we review several key studies in the identification of a pitch processing center in primate auditory cortex, and discuss issues concerning the neural substrate of pitch perception.…”