Fig. 1: Intra-operative recordings of theta activity in ventro-medial STN in OCD patients.
From: Subthalamic theta activity: a novel human subcortical biomarker for obsessive compulsive disorder
An example of intra-operative trajectory: a Electrodes location marked (white arrows) on reconstructions of the postop CT with the pre-op MRI of one OCD patient. b–d The normalized root mean squared (NRMS, b), power spectral density (PSD, c) and average PSD at contacts location (d) of one OCD patient right STN. PSD in c was smoothed with 2D Gaussian window of size 13 and standard deviation equal to 2. Window size is equivalent to 4 Hz on the x axis and 13 steps on the y axis. Step size varies according to location in the brain (see methods). EDT estimated distance to target (defined as STN center according to preoperative imaging)
