scholarly journals "What" and "Where" in the Intraparietal Sulcus: An fMRI Study of Object Identity and Location in Visual Short-Term Memory

2010 ◽  
Vol 20 (10) ◽  
pp. 2478-2485 ◽  
Author(s):  
A. Harrison ◽  
P. Jolicoeur ◽  
R. Marois
2011 ◽  
Vol 1406 ◽  
pp. 30-42 ◽  
Author(s):  
Zaifeng Gao ◽  
Xiaotian Xu ◽  
Zhibo Chen ◽  
Jun Yin ◽  
Mowei Shen ◽  
...  

2010 ◽  
Vol 22 (11) ◽  
pp. 2570-2593 ◽  
Author(s):  
Steve Majerus ◽  
Arnaud D'Argembeau ◽  
Trecy Martinez Perez ◽  
Sanaâ Belayachi ◽  
Martial Van der Linden ◽  
...  

Although many neuroimaging studies have considered verbal and visual short-term memory (STM) as relying on neurally segregated short-term buffer systems, the present study explored the existence of shared neural correlates supporting verbal and visual STM. We hypothesized that networks involved in attentional and executive processes, as well as networks involved in serial order processing, underlie STM for both verbal and visual list information, with neural specificity restricted to sensory areas involved in processing the specific items to be retained. Participants were presented sequences of nonwords or unfamiliar faces, and were instructed to maintain and recognize order or item information. For encoding and retrieval phases, null conjunction analysis revealed an identical fronto-parieto-cerebellar network comprising the left intraparietal sulcus, bilateral dorsolateral prefrontal cortex, and the bilateral cerebellum, irrespective of information type and modality. A network centered around the right intraparietal sulcus supported STM for order information, in both verbal and visual modalities. Modality-specific effects were observed in left superior temporal and mid-fusiform areas associated with phonological and orthographic processing during the verbal STM tasks, and in right hippocampal and fusiform face processing areas during the visual STM tasks, wherein these modality effects were most pronounced when storing item information. The present results suggest that STM emerges from the deployment of modality-independent attentional and serial ordering processes toward sensory networks underlying the processing and storage of modality-specific item information.


2013 ◽  
Vol 29 (3) ◽  
pp. 219-224 ◽  
Author(s):  
Qingjun Jiang ◽  
Xiao Yang ◽  
Kai Liu ◽  
Bo Li ◽  
Li Li ◽  
...  

2018 ◽  
Author(s):  
Maren Prass ◽  
Bianca de Haan

The existing literature suggests a critical role for both the right intraparietal sulcus (IPS) and the right temporo-parietal junction (TPJ) in our ability to attend to multiple simultaneously-presented lateralised targets (multi-target attention), and the failure of this ability in extinction patients. Currently, however, the precise role of each of these areas in multi-target attention is unclear. In this study, we combined the theory of visual attention (TVA) with functional magnetic resonance imaging (fMRI) guided continuous theta burst stimulation (cTBS) in neurologically healthy subjects to directly investigate the role of the right IPS and TPJ in multi-target attention. Our results show that cTBS at an area of the right IPS associated with multi-target attention elicits a reduction of visual short-term memory capacity. This suggests that the right IPS is associated with a general capacity-limited encoding mechanism that is engaged regardless of whether targets have to be attended or remembered. Curiously, however, cTBS to the right IPS failed to elicit extinction-like behaviour in our study, supporting previous suggestions that different areas of the right IPS may provide different contributions to multi-target attention. CTBS to the right TPJ failed to induce a change in either TVA parameters or extinction-like behaviour.


2009 ◽  
Vol 65 ◽  
pp. S193
Author(s):  
Masanori Kanazu ◽  
Hiroki Yamamoto ◽  
Nobukatsu Sawamoto ◽  
Hidenao Fukuyama ◽  
Jun Saiki

PLoS ONE ◽  
2008 ◽  
Vol 3 (10) ◽  
pp. e3536 ◽  
Author(s):  
Margaret C. Jackson ◽  
Claudia Wolf ◽  
Stephen J. Johnston ◽  
Jane E. Raymond ◽  
David E. J. Linden

Sign in / Sign up

Export Citation Format

Share Document