Assessing the auditory dual-pathway model in humans

Where sound position influences sound object representations: A 7-T fMRI study

“…Discrete parts of the planum polare, including areas AA and ALA (Viceic et al, 2006), were shown to be activated by tasks relevant to sound recognition or musical processes (Brown et al, 2004), but not or significantly less by tasks relevant to sound localisation (Altmann et al, 2007;Arnott et al, 2004;Griffiths and Warren, 2002;Hart et al, 2004;Hunter et al, 2003;Viceic et al, 2006). Discrete parts of the planum temporale, situated mainly laterally to Heschl's gyrus, (Altmann et al, 2007;Arnott et al, 2004;Griffiths and Warren, 2002;Hart et al, 2004), and more specifically areas LA, STA, and PA (Viceic et al, 2006), were shown to be involved equally in recognition and in spatial tasks (Fig. 5), as well as audio-motor coordination .…”

“…The comparison of our results with previous studies suggests that non-primary auditory areas have distinct selectivity features. Areas AA and ALA have been found to be selective for sound object recognition, as opposed to sound localisation, and were proposed to be part of the What stream (Viceic et al, 2006); see also (Altmann et al, 2007;Arnott et al, 2004;Hart et al, 2004;Hunter et al, 2003). The influence of spatial cues on responses of ALA to environmental sounds may play a role in sound object segregation; its presence within an area of the ventral (What) stream may explain the preservation of the use of spatial cues for sound object segregation in case of spatial deafness .…”

“…A ventral recognition stream and a dorsal localisation stream have been identified in man on the temporal and parietal convexities, respectively, in imaging (Alain et al, 2001;Anourova et al, 2001;Arnott et al, 2004;De Santis et al, 2007;Lewis et al, 2004;Maeder et al, 2001) and lesion studies (Clarke et al, 2000Ducommun et al, 2002;Rey et al, 2007). Interactions between the auditory What and Where streams are likely to occur on the supratemporal plane, where the two streams partially overlap (Altmann et al, 2007;Arnott et al, 2004;Griffiths and Warren, 2002;Hart et al, 2004;Hunter et al, 2003;Viceic et al, 2006). Several architectonically defined areas are located within this region, including the primary (on Heschl's gyrus; Morosan et al, 2001) and several non-primary auditory areas: the anterior (AA), anterolateral (ALA), lateral (LA), medial (MA), posterior (PA), and superior temporal (STA) areas (as identified by their histo-and immunohistochemical characteristics; Rivier and Clarke, 1997;Wallace et al, 2002).…”

“…In human subjects, several low-resolution imaging and electrophysiological studies have shown that the auditory What and Where streams overlap partially on the supratemporal plane, suggesting that the primary and early-stage non-primary auditory areas are involved in processing of either auditory feature alone or of both, potentially in combination (Altmann et al, 2007;Arnott et al, 2004;Griffiths and Warren, 2002;Hart et al, 2004;Hunter et al, 2003;Viceic et al, 2006). The spatial coding within these areas has been suggested to concern a relatively low level left/right discrimination, while the finer representation of auditory space is processed in higher-order areas, including the parietal cortex (Lewald et al, 2008).…”

Areas activated during naturalistic reading comprehension overlap topological visual, auditory, and somatotomotor maps

“…While tonotopy in superior temporal cortex has been the subject of several studies [Da Costa et al, 2011; Dick et al, 2012; Formisano et al, 2003; Humphries et al, 2010; Langers and Van Dijk, 2012; Talavage et al, 2000, 2004] there is virtually no literature on tonotopy in human frontal cortex. There is, by contrast, a wealth of neuroimaging studies providing evidence that the human frontal lobe is active during general auditory tasks [Alain et al, 2001; Arnott et al, 2004; Gaab et al, 2003; Kiehl et al, 2001; Koelsch et al, 2009; Muller et al, 2001; Platel et al, 1997; Rämä et al, 2004]. Neurophysiological and neuroanatomical findings in non‐human primates show that both dorsolateral and ventral PFC is reciprocally interconnected with auditory regions in the temporal cortex [Hackett et al, 1999; Plakke and Romanski, 2014; Romanski et al, 1999].…”