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Anxiety disorders are a social problem due to their prevalence and consequences. It is crucial to explore the influence of anxiety on cognitive processes. In this study we recorded EEG activity from 73 subjects (35 patients, 38 controls, matched for age and education) during performance of the Continuous Attention Task. We used low resolution electromagnetic tomography (LORETA) for evaluation of mechanisms...
Local field potentials recording is a tool well suited for the chronic monitoring of neuronal activity. However, due to the widespread propagation of electric field within a brain tissue a signal recorded in one place may possess a substantial contribution of synaptic currents from distant neuronal populations. In the rat vibrissae-barrel system the cortical representation of mystacial vibrissae is...
Sherman and Guillery (2002) proposed that thalamic sensory nuclei might function as first- or higher-order relays. According to their hypothesis, first order relays (such as rat’s ventral postero-medial nucleus, VPM) transmit sensory information from the periphery to the cortex, while the function of higherorder relays (such as rat’s medial posterior nucleus, PoM) is to transmit information between...
The vibrissal system of rodents has become one of the dominant models for investigating the mechanisms of sensory information processing. However, the mechanisms underlying integration of multiple whisker input is not well understood. To address this question, we recorded local fi eld potentials (LFP) from the barrel cortex in of anaesthetised rat. Recording points were distributed on the 4 × 22 grid...
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