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Dissociated pathways for successful memory retrieval from the human parietal cortex: anatomical and functional connectivity analyses (2008).
| Content Provider | CiteSeerX |
|---|---|
| Author | Takahashi, Emi Ohki, Kenichi Kim, Dae-Shik |
| Abstract | The parietal cortex has traditionally been implicated in spatial attention and eye-movement processes. Recent functional neuro-imaging studies have found that activation in the parietal cortex is related to successful recognition memory. The activated regions consistently include the intraparietal sulcus in the lateral parietal cortex and the precuneus in the medial parietal cortex. However, little is known about the functional differences between lateral and medial parietal cortices in the memory retrieval process. In this study, we examined whether the human lateral and medial parietal lobes have differential anatomical and functional connectivity with the temporal lobe. To this end, we used functional magnetic resonance imaging to constrain the analysis of anatomical connectivity obtained by diffusion tensor imaging (DTI). Both DTI tractography and functional connectivity analysis showed that the lateral parietal region has anatomical and functional connections with the lateral temporal lobe, and the medial parietal region has connections with the medial temporal lobe. These results suggest the existence of segregated lateral and medial parieto-temporal pathways in successful memory retrieval. |
| File Format | |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Subject Keyword | Functional Connectivity Analysis Successful Memory Retrieval Dissociated Pathway Human Parietal Cortex Parietal Cortex Medial Parietal Cortex Lateral Parietal Region Recent Functional Neuro-imaging Study Functional Difference Dti Tractography Successful Recognition Memory Functional Connection Medial Parietal Lobe Functional Magnetic Resonance Imaging Anatomical Connectivity Eye-movement Process Medial Parieto-temporal Pathway Functional Connectivity Lateral Temporal Lobe Medial Parietal Region Diffusion Tensor Imaging Lateral Parietal Cortex Medial Temporal Lobe Spatial Attention Activated Region Temporal Lobe Memory Retrieval Process |
| Content Type | Text |
