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Fig. 2 | EJNMMI Research

Fig. 2

From: Feasibility of 15O-water PET studies of auditory system activation during general anesthesia in children

Fig. 2

Examples of activations in auditory and extra-auditory regions (AR and eAR separated by blue line) detected with different smoothing filter kernels (always using a cut-off for statistical inferences of p < 0.01). Stimulation was done in an adult patient via promontory needle electrode during awake state. Note: The highest proportion of activation in the auditory cortex was detected with the second highest degree of smoothing (filter kernel of approximately three times of the full width at half maximum, [20 mm]3). Higher degrees of smoothing result in the detection of less extra-auditory activation

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