The Journal of Neuroscience, April 18, 2007, ():
Independent Effects of Emotion and Working Memory Load on Visual Activation in the Lateral Occipital Complex
J. Neurosci. Gläscher et al.
27: 4366
Supplemental Data
Files in this Data Supplement:
- supplemental material
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Supplemental Figure 1. Relationship of the present findings in LOC to the
results in the fusiform face area (FFA) in the studies by Vuilleumier et
al. (2001) and Pessoa et al. (2002).
Panels A and B. Mean parameter estimates (error bars = s.e.m. across
subjects) and phase coherence slopes for 33 voxels from a 6mm sphere
centered on the the peak voxel in LOC in the conjunction analysis (see
Figure 3). Green and magenta arrows visualize data selection of data points
for plotting a very similar pattern of findings reported in Pessoa et al.
(2002) and Vuilleumier et al. (2001) respectively. We chose the same visual
display for plotting our data as in the reference study to highlight the
similarities. Panel C. Effects of the emotional modulation for 0% and 100%
phase coherence levels (1-back only) ignoring the load factor. Parameter
estimates are convolved the hemodynamic response function (HRF). Note the interaction effect between emotion and phase coherence. Panel D. Parameter estimates for emotion and load at 100% phase coherence only thus ignoring the phase coherence factor. Note the two independent (i.e. non-interacting) main effects for emotion and load. Panel E. Data for the emotion xattention interaction in the fusiform gyrus in Pessoa et al. (2002). The red and blue curves (straight and dashed) correspond to the data in panel
C. Reprinted from Pessoa L, McKenna M, Gutierrez E, Ungerleider LG (2002), Neural processing of emotion requires attention, Proc Natl Acad Sci U S A, 99, 11458-11463, Copyright (2001) by the National Academy of Sciences, U. S. A. Panel F. Data for the two main effects of emotion and attention in Vuilleumier et al. (2001) in the fusiform gyrus. Black and gray bars match those in panel D. Reprinted from Neuron, 30, Vuilleumier P, Armony JL, Driver J, Dolan RJ, Effects of attention and emotion on face processing in the human brain: an event-related fMRI study, 829-841, 2001, with permission from Elsevier.
- supplemental material
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Supplemental Figure 2. The two 2-way interactions visualized as differences
scores.
For the load x phase coherence interaction we subtracted all 2-back from 1-
back conditions averaging over emotion conditions and fitted a linear
regression to these data. A t-test on the slope parameter of this
regression revealed that they are significantly different from zero
indicating a significant load ( phase coherence interaction effect (left
LOC: T22 = 5.08, p < 0.0001; right LOC: T22 = 4.83, p < 0.0001).
For the emotion x phase coherence interaction we subtracted all neutral
from negative condition averaging of load condition and fitted a linear
regression to these data. A t-test on the slope parameter on this
regression revealed that they are also significantly different from zero
indicating a significant emotion ( phase coherence interaction effect (left
LOC: T22 = 5.16, p < 0.0001; right LOC: T22 = 4.35, p < 0.001).
