figure e- 1 (supplemental)
DESCRIPTION
-200. 0. 200. 400. 600. Time (ms). Figure e- 1 (supplemental). A. f ruit s (t arget ). B. s crambled images. 60. c onson ant strings (e.g.”qztvcw”). 40. p seudo words (e.g.”boutale”). 20. Normalized gamma amplitude (%). o bject s. 0. s cene s. -20. a nimal s. f ace s. - PowerPoint PPT PresentationTRANSCRIPT
A
C
Figure e-1 (supplemental)
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houses
faces
animals
scenes
objects
pseudowords
consonant strings
scrambled images
fruits (target)
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Figure e-1. A) Localization of the recording electrode in the 2nd patient, CQ (Talairach coordinates: -67 -
44 -20) B) Mean broadband gamma response (50-150 Hz) to different stimuli. C) Trial-to-trial gamma
power responses.
houses
faces
animals
scenes
objects
pseudowords(e.g.”boutale”)
consonant strings (e.g.”qztvcw”) .
scrambled images
fruits (target)
Figure e-2 (supplemental)
strongestresponse to:
3.5 mm
Figure e-2. Specific responses to letter-strings are confined to one electrode contact only. A)
Structural T1-weigthed MRI image of subject PM with implanted depth-electrodes. The depth-electrode
of interest is highlited by a white rectangle. B) Gamma amplitude responses to pseudowords at
neighbouring electrode contacts along the depth-electrode. Responses were normailzed to the largest
non-character response; for example, at electrode contact 7, 100% is equal response to animals, the
strongest non-character response at that electrode. Note that specific responses to letter-strings drop off
sharply from over 500% at contact 7 to 109% at contact 8. Responses of contact 7 are depicted in detail
in Figure 1. Gamma response amplitudes were calculated in a 0-200 ms window. Responses to target
images (fruits) were excluded from the figure to avoid contamination with top-down effects and motor
preparation. Electrode contacts with poor signal or no signal are omitted. Note that the size of the
electodes in A) (0.8 mm diameter) is magnified by the MRI artefact.
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animals animalspseudo-words
pseudo-words
pseudo-words
electrodecontacts
y=-57
y=-57
z=-10
2 3 7 8 9
gamma amplitude (0-200 ms) to pseudowords
normalized to largest non-character response (%)
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