Showing papers in "Neuropsychologia in 2003"
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TL;DR: Brain regions that respond to attractive faces which manifested either a neutral or mildly happy face expression were investigated, suggesting that the reward value of an attractive face as indexed by medial OFC activity is modulated by a perceiver directed smile.
843 citations
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TL;DR: Converging evidence across species supports the hypothesis of interactive multiple memory systems in the mammalian brain.
828 citations
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TL;DR: This review paper focuses on studies in healthy human subjects that examined the functional neuroanatomy and cerebral plasticity associated with the learning, consolidation and retention phases of motor skilled behaviors using modern brain imaging techniques.
795 citations
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TL;DR: Evidence is provided that both auditory and visual speech perception facilitate the excitability of the motor system involved in speech production.
587 citations
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TL;DR: Functional magnetic resonance imaging of the whole brain was used to examine the neural correlates of response inhibition in normal subjects as they performed a Go/NoGo task, suggesting lower IQ was more important than impulsivity scores in determining errors of commission during the task.
587 citations
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TL;DR: This research uses the P1 component of the event-related brain potential (ERP) as a proximal index of attention allocation to valenced stimuli and finds process-based evidence for a negativity bias in attention allocation.
526 citations
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TL;DR: These studies demonstrate that functional neuroimaging can offer more than neuroanatomical localization information; in addition, these studies offer new insights into longstanding questions about semantic memory.
517 citations
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TL;DR: Findings that dopaminergic medication improves or impairs cognitive performance depending on the nature of the task and the basal level of dopamine function in underlying cortico-striatal circuitry are replicated and extended.
512 citations
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TL;DR: The recent volume of the Attention and Performance series as discussed by the authors, Common Mechanisms in Perception and Action, represents a comprehensive review of current thinking on how perceptions and actions can be integrated.
505 citations
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TL;DR: Issues relevant to theories that attempt to relate repeated stimulus processing with reduction in neural activity are discussed, concentrating in particular on the interpretative limitations of current imaging techniques.
474 citations
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TL;DR: The analyses indicate that theVolume of the prefrontal cortex (PFC) and the volume of white matter hyperintensities in the prefrontal region are independently associated with age-related increases in perseverative errors on the Wisconsin Card Sorting Test (WCST).
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TL;DR: FMRI is used to isolate differences between the brain networks which measure 0.6 and 3s in a temporal discrimination task with visual discrimination for control, suggesting that distinct components are used for the two durations.
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TL;DR: FMRI patterns of prefrontal activity associated with encoding and recognition during WM and LTM tasks performed by the same subjects support the view that the same prefrontal regions implement reflective processes that support both WM andLTM.
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TL;DR: The results suggest different roles for medial and lateral rostral prefrontal cortex, with the former involved in suppressing internally-generated thought, and the latter in maintaining it.
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TL;DR: Beyond infancy, a range of developmental disorders show a deficit of global motion compared to global form processing which it is argued reflects a general 'dorsal-stream vulnerability'.
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TL;DR: This method is notable in that a comparison of the two tasks within some of the individual subjects revealed activation patterns similar to the group average, especially within left inferior frontal and left superior/middle parietal cortices.
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TL;DR: The results are discussed in terms of studies from the neuropsychological and functional imaging literature that indicate that separate brain regions may underlie the emotions fear and disgust.
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TL;DR: Results indicated that the psychopathic individuals did not present with any generalised impairment in ToM and the putative neural system mediating performance on this task and models of psychopathy are discussed.
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TL;DR: It is concluded that the analysis of structure-function relationships must take into account extra-structure damage which may explain cognitive deficits.
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TL;DR: This study triangulates executive planning and visuo-spatial reasoning in the context of the Tower of London (TOL) task by using a variety of methodological approaches, which converge on a deepening understanding of the combination of perceptual and conceptual processes in this type of visual problem solving.
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TL;DR: The results indicate that different memory orientations recruit distinct prefrontal and parietal networks and that the recovery of episodic context is associated with the hippocampus and surrounding medial temporal cortices.
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TL;DR: Results are consistent with a model of feeling sympathy that relies on both the shared representation and the affective networks, and Interestingly, this network was not activated when subjects watched inappropriate social behavior.
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TL;DR: Significantly larger hemodynamic responses (HDR) were evoked by gaze shifts compared to no gaze shifts in primarily right hemisphere STS, and similar effects were also observed in the intraparietal sulcus and fusiform gyrus.
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TL;DR: The main aim of this study was to use bold contrast fMRI to clarify the normal functional neuroanatomy of emotional prosody, in passive and active contexts, and emphasises the importance of the right hemisphere in the processing of emotional Prosody, specifically the lateral temporal lobes.
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TL;DR: The first evidence of theory ofMind deficits following amygdala damage acquired in adulthood is presented, indicating that the amygdala's critical role in theory of mind may not be just in development, but also in "on-line" theory ofmind processing in the adult brain.
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TL;DR: Using functional magnetic resonance imaging (fMRI), fMRI finds evidence for common neural areas across both tasks in bilateral parietal cortex, but areas preferentially involved in the switching of attention between mental counts and the inhibition of a prepotent motor response are found.
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TL;DR: The results indicate a laterality effect on the Iowa Gambling Task, and the contribution of prefrontal regions outside the ventromedial region to task performance.
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TL;DR: The findings of these experiments clearly demonstrate that different neural systems support cognitive control and conflict processing, with some degree of hemispheric specialization observed for conflict processing.
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TL;DR: This work describes two acalculic patients, one with a focal lesion of the left parietal lobe and Gerstmann's syndrome and another with semantic dementia with predominantly left temporal hypometabolism, and predicts the association of deficits predicted by this theory and the presence or absence of impairments in non-symbolic quantity processing.
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TL;DR: Although both Parkinson's disease groups showed impairments of facial expression recognition, the consistently worse recognition of disgust in the unmedicated group is consistent with the hypothesis from previous studies that brain regions modulated by dopaminergic neurons are involved in the Recognition of disgust.