Citation Context

...matosensory, speech, writing Introduction It is claimed that the left inferior parietal cortex, and the angular gyrus (AG) in particular, is central to amodal (spoken and written) word comprehension (=-=Geschwind 1965-=-; Mesulam 1998). A meta-analysis of functional neuroimaging studies on normal subjects is interpreted as supporting this view (Vigneau et al. 2006). In terms of production as well as comprehension, Ca...

Citation Context

...central to amodal (spoken and written) word comprehension (Geschwind 1965; Mesulam 1998). A meta-analysis of functional neuroimaging studies on normal subjects is interpreted as supporting this view (=-=Vigneau et al. 2006-=-). In terms of production as well as comprehension, Catani and ffytche (2005) have proposed that Geschwind’s ‘‘territory’’ (in inferior parietal cortex), anatomically connected to the territories of W...

Citation Context

...’’ thoughts, mental ruminations that rely on declarative (semantic and episodic) memories perhaps expressed internally as covert language (inner speech) (Binder et al. 1999; Gusnard and Raichle 2001; =-=Gusnard et al. 2001-=-; Mazoyer et al. 2001). As in previous studies (Spitsyna et al. 2006; Awad et al. 2007), the number task condition, originally 518 The Contribution of the Parietal Lobes to Speaking and Writing d and ...

Citation Context

...trast, a recent model of the anatomy of language excludes the AG altogether from speech comprehension and production and attributes the processing of language to the temporal and frontal lobes alone (=-=Hickok and Poeppel 2007-=-). Although usually considered in terms of cognitive processing, expressive language, spoken or written, is a complex motor act sustained over time. During development, speech is acquired first withou...

Citation Context

...‘‘self-referential’’ or ‘‘stimulus-independent’’ thoughts, mental ruminations that rely on declarative (semantic and episodic) memories perhaps expressed internally as covert language (inner speech) (=-=Binder et al. 1999-=-; Gusnard and Raichle 2001; Gusnard et al. 2001; Mazoyer et al. 2001). As in previous studies (Spitsyna et al. 2006; Awad et al. 2007), the number task condition, originally 518 The Contribution of th...

Citation Context

...red first without explicit training. One computational model emphasizes the key roles of both auditory and somatosensory feedback during both the acquisition and maintenance of speech (Guenther 2006; =-=Guenther et al. 2006-=-). Although the response of auditory cortex to one’s own voice is less than to the voice of another (Creutzfeldt et al. 1989; Houde et al. 2002), processing reafferent feedback is necessary when vocal...

Citation Context

...feedback during both the acquisition and maintenance of speech (Guenther 2006; Guenther et al. 2006). Although the response of auditory cortex to one’s own voice is less than to the voice of another (=-=Creutzfeldt et al. 1989-=-; Houde et al. 2002), processing reafferent feedback is necessary when vocalizations are susceptible to many different forms of error (Garrett 1975; Levelt 1983; Smotherman 2007), such as spoonerisms ...

Citation Context

...h analyzing meaning, over and above lexical Cerebral Cortex March 2010, V 20 N 3 521Brownsett semantics, that is conveyed by combinations of words in phrases and sentences (combinatorial semantics) (=-=Humphries et al. 2007-=-; Lau et al. 2008). A recent meta-analysis by Binder et al. (2009) proposes that the AG is at the top of a processing hierarchy ‘‘underlying concept retrieval and conceptual integration’’ and perhaps ...

Citation Context

...acquisition and maintenance of speech (Guenther 2006; Guenther et al. 2006). Although the response of auditory cortex to one’s own voice is less than to the voice of another (Creutzfeldt et al. 1989; =-=Houde et al. 2002-=-), processing reafferent feedback is necessary when vocalizations are susceptible to many different forms of error (Garrett 1975; Levelt 1983; Smotherman 2007), such as spoonerisms (e.g., ‘‘you have t...

Citation Context

...een included in a more recent model proposed by Poeppel’s group (Lau et al. 2008). Our group has repeatedly observed activation of this area in amodal narrative language comprehension and production (=-=Blank et al. 2002-=-; Spitsyna et al. 2006; Awad et al. 2007). Overall, the evidence strongly supports a role for the left AG as a component of a distributed language network, operating at high-order amodal level. An alt...

Citation Context

...mal narrative writing under both visual and somatosensory control. There is general agreement that the contralateral superior parietal cortex (including cortex within the IPS) is involved in writing (=-=Nakamura et al. 2000-=-; Menon and Desmond 2001; Beeson et al. 2003; Sugihara et al. 2006). This is in accord with focal lesion studies of patients with agraphia due predominantly to a deficit in the motor execution of writ...

Citation Context

... cortex, associated with the repetitive production of syllables and repeated writing of /w/s. This distribution of activity corresponds well with the cortical regions involved in sustained attention (=-=Husain and Nachev 2007-=-). Although normally considered in terms of sustained monitoring of sensory stimuli, based on the data from this study, the same system may be engaged during the sustained production of repeated meani...

Citation Context

...tion, and predictive representations of visual movement. These guide reaching, pointing, grasping, and precise placing of hand position in response to external visual cues (Corbetta and Shulman 2002; =-=Castiello 2005-=-). Although somatosensory processes have received rather less attention, they are also recognized as important in the control of actions in general (Dijkerman and de Haan 2007) and specifically in goa...

Citation Context

... There is general agreement that the contralateral superior parietal cortex (including cortex within the IPS) is involved in writing (Nakamura et al. 2000; Menon and Desmond 2001; Beeson et al. 2003; =-=Sugihara et al. 2006-=-). This is in accord with focal lesion studies of patients with agraphia due predominantly to a deficit in the motor execution of writing rather than a central linguistic deficit (Basso et al. 1978; A...

Citation Context

...matosensory control. There is general agreement that the contralateral superior parietal cortex (including cortex within the IPS) is involved in writing (Nakamura et al. 2000; Menon and Desmond 2001; =-=Beeson et al. 2003-=-; Sugihara et al. 2006). This is in accord with focal lesion studies of patients with agraphia due predominantly to a deficit in the motor execution of writing rather than a central linguistic deficit...

Citation Context

...Sugihara et al. 2006). This is in accord with focal lesion studies of patients with agraphia due predominantly to a deficit in the motor execution of writing rather than a central linguistic deficit (=-=Basso et al. 1978-=-; Alexander et al. 1992; Otsuki et al. 1999). However, this study has demonstrated more widely distributed parietal activity. Whether writing involved creating lines of text or repeated /w/s, there wa...

Citation Context

... 2) dorsal inferior parietal cortex ( 42, 40, þ44); 3) more ventral and lateral inferior parietal cortices ( 60, 42, þ36); 4) parietal operculum ( 62, 26, þ18); and the AG ( 50, 68, þ26). using fMRI (=-=Dhanjal et al. 2008-=-). One interpretation of this dissociation is that both sensorimotor integration and attention are directed predominantly toward auditory feedback during normal speech, whereas attention is divided be...

Citation Context

...rocesses have received rather less attention, they are also recognized as important in the control of actions in general (Dijkerman and de Haan 2007) and specifically in goal-directed hand movements (=-=Gardner et al. 2007-=-). In this study, we directly contrasted the production of written (WrNa) and spoken narratives (SpNa). The purpose was to compare directly the role of parietal cortex in the control and maintenance o...

Citation Context

...ith focal lesion studies of patients with agraphia due predominantly to a deficit in the motor execution of writing rather than a central linguistic deficit (Basso et al. 1978; Alexander et al. 1992; =-=Otsuki et al. 1999-=-). However, this study has demonstrated more widely distributed parietal activity. Whether writing involved creating lines of text or repeated /w/s, there was bilateral activity in superior parietal c...

Citation Context

...iverse loss of function soon after the lesion, with compensatory recovery intervening within days or weeks, and so detailed behavioral observations in the early phase after the ictus may be required (=-=Hillis and Rapp 2004-=-). Dejerine (1892) observed patients with chronic lesions in the AG who presented with disorders of reading, both with and without agraphia. However, more recent lesion studies and functional imaging ...

Citation Context

...age (Blank et al. 2002; Spitsyna et al. 2006; Vigneau et al. 2006; Awad et al. 2007). It may be premature to exclude the AG from models of the functional anatomy of language (Hickok and Poeppel 2007; =-=Saur et al. 2008-=-), but it remains to be established whether its role is related more to lexical semantics, as proposed by Geschwind (1965), or alternative roles, such as the temporary storage of short sequences of th...