A fronto-parietal network for rapid visual information processing: a PET study of sustained attention and working memory

  title={A fronto-parietal network for rapid visual information processing: a PET study of sustained attention and working memory},
  author={Jennifer T. Coull and Chris D. Frith and R. S. J. Frackowiak and Paul M. Grasby},
Functional Activation during the Rapid Visual Information Processing Task in a Middle Aged Cohort: An fMRI Study
Frontal (superior and inferior frontal gryi), parietal, parietal and cerebellar regions were shown to be active in both the block and event-related analyses, suggesting their importance in sustained attention/vigilance.
Dissociating aspects of verbal working memory within the human frontal lobe: Further evidence for a “process-specific” model of lateral frontal organization
The effects of varying the executive requirements of a simple verbal working memory task were explored in 8 subjects, using PET, to establish whether this model generalizes to the verbal domain and provide further evidence that the middorsolateral and midventrolateral frontal cortical areas make distinct functional contributions to memory.
A paced visual serial addition test for fMRI
Differential Activation of Right Superior Parietal Cortex and Intraparietal Sulcus by Spatial and Nonspatial Attention
Data suggest first that right IPS is recruited for both nonspatial and spatial attention and WM, and second, right BA7 is recruited specifically for spatial forms of attentional processing.
Updating working memory for words: A PET activation study
A PET study of 10 normal individuals was carried out to investigate the cerebral regions involved in the controlled updating of verbal working memory and found bilateral activation of dorsolateral prefrontal (middle frontal gyrus; MFG) and inferior parietal (supramarginal gyrus) cortical regions is suggested to be related to the executive control of goal‐setting in planned behavior.
Frontal and parietal networks for conditional motor learning: a positron emission tomography study.
The predicted rCBF changes in premotor and prefrontal areas during arbitrary mapping tasks are confirmed and suggest that a broad frontoparietal network may show decreased synaptic activity as arbitrary rules become more familiar.
The role of the lateral frontal cortex in mnemonic processing: the contribution of functional neuroimaging
  • A. Owen
  • Psychology, Biology
    Experimental Brain Research
  • 2000
The results provide further evidence that the mid-dorsolateral and mid-ventrolateral frontal cortical areas make distinct "executive" contributions to memory and correspond with a fractionation of working-memory processes in psychological terms.


Activation of the prefrontal cortex in a nonspatial working memory task with functional MRI
These findings corroborate the results of positron emission tomography studies, which suggest that the prefrontal cortex is engaged by tasks that rely on working memory, and demonstrate the applicability of newly developed fMRI techniques using conventional scanners to study the associative cortex in individual subjects.
Functional activation of the human frontal cortex during the performance of verbal working memory tasks.
Evidence is provided regarding the role of the mid-dorsolateral frontal cortex in mnemonic processing that are in agreement with recent findings from work with non-human primates.
A graded task approach to the functional mapping of brain areas implicated in auditory-verbal memory.
Positron emission tomography measurements of regional cerebral blood flow were performed in normal volunteers during a graded auditory-verbal memory task and suggest that the areas identified are associated with limited capacity processes for encoding and retrieval.
The functional organization of human extrastriate cortex: a PET-rCBF study of selective attention to faces and locations
The functional dissociation of human extrastriate cortical processing streams for the perception of face identity and location was investigated in healthy men by measuring visual task-related changes
The neural basis of the central executive system of working memory
Using functional magnetic resonance imaging to examine brain activation during the concurrent performance of two tasks, which is expected to engage the CES, results support the view that the prefrontal cortex is involved in human working memory.
Localization of a human system for sustained attention by positron emission tomography
POSITRON emission tomographic (PET) studies of human attention have begun to dissect isolable components of this complex higher brain function, including a midline attentional system in a region of
The anterior cingulate cortex mediates processing selection in the Stroop attentional conflict paradigm.
Regional cerebral blood flow, an index of local neuronal activity, was measured using positron emission tomography during the performance of the classic Stroop color/word task in eight healthy right-handed subjects to provide support for the role of the anterior cingulate cortex in attentional processing through the selection and recruitment of processing centers appropriate for task execution.
Brain systems for encoding and retrieval of auditory-verbal memory. An in vivo study in humans.
The results of this study indicate that separate brain systems are engaged during the encoding and retrieval phases of episodic auditory-verbal memory, and engage a different, but overlapping, system to that engaged by retrieval from semantic memory.