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The invariant properties of human cortical neurons cannot be studied directly by fMRI due to its limited spatial resolution. Here, we circumvented this limitation by using fMR adaptation, namely, reduction of the fMR signal due to repeated presentation of identical images. Object-selective regions (lateral occipital complex [LOC]) showed a monotonic signal(More)
Object related areas in the human ventral stream were previously shown to be activated, in a shape-selective manner, by luminance, motion, and texture cues. We report on the preferential activation of these areas by stereo cues defining shape. To assess the relationship of this activation to object recognition, we employed a perceptual stereo effect, which(More)
Mice with experimental neuropsychiatric lupus (NPSLE), induced by anti-ribosomal-P antibodies, developed depression-like behavior and a diminished sense of smell. Manganese-enhanced MRI (MEMRI) allows in vivo mapping of functional neuronal connections in the brain, including the olfactory tract. The aim of this study was to analyze and describe, via the(More)
OBJECTIVES We have previously reported that pathological gamblers have impaired performance on the Stroop color word naming task, go-no-go task and speed accuracy tradeoff performance, tasks used to assess executive function and interference control. The aim of the present neuroimaging study was to explore the relationship between frontal cortex function(More)
The present study attempts to challenge the orbitofrontal cortex by using a learning paradigm which is specifically subserved by this cortical region. We implemented a version of alternation learning specifically designed for fMRI and assessed the cognitive performance and fMRI response in wide range of social anxiety disorder (SAD) severity (n=15). The(More)
The recording of movement kinematics during functional magnetic resonance imaging (fMRI) experiments is complicated due to technical constraints of the imaging environment. Nevertheless, to study the functions of brain areas related to motor control, reliable and accurate records of movement trajectories and speed profiles are needed. We present a method(More)
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