JLE

Epileptic Disorders

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Room tilt illusion in epilepsy Volume 23, numéro 6, December 2021

Figure 1

Visual representation of the patient's reported tilt illusion. (A) Normal representation of a table with some objects. (B) A 60̊ counterclockwise tilt of the image in (A), as would be perceived by our patient during her typical spell.

Figure 2

(A, B) Two EEGs that correlate with two of the patient's room tilt illusion spells. Each EEG demonstrates a brief burst of bifrontally predominant polyspike-and-wave discharges. Note that the patient pressed on the event push button a few seconds afterwards. Display is presented at 20 seconds per page; LF: 1 Hz; HF: 35 Hz; sensitivity: 15 μV/mm.