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Figure 1. (A) One training trial in the probabilistic selection task
Figure 1. (A) One training trial in the probabilistic selection task. Participants had 1 s to select one of the symbols presented to the left or to the right. Based on the selected symbol's reward probability, positive or negative feedback was presented. RT = response time. (B) Reward probabilities associated with each symbol. The reward probabilities and symbols were randomized between participants. (C) One trial in the lexical decision task. After fixation a prime (word or nonword) was presented centrally for 200 ms directly followed by a 150 ms presentation of either a laterally presented target (word or nonword). Participants indicated whether the target was a real word or a nonword. LVF = Left visual field. RVF = Right visual field. From: The “Creative Right Brain” Revisited: Individual Creativity and Associative Priming in the Right Hemisphere Relate to Hemispheric Asymmetries in Reward Brain Function Cereb Cortex. 2016;27(10): doi: /cercor/bhw288 Cereb Cortex | © The Author Published by Oxford University Press. All rights reserved. For Permissions, please
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Figure 2. (A) Differential neural response to positive versus negative feedback. (B) Distribution of the hemispheric reward asymmetry index. L/R VStr = left/right ventral striatum. From: The “Creative Right Brain” Revisited: Individual Creativity and Associative Priming in the Right Hemisphere Relate to Hemispheric Asymmetries in Reward Brain Function Cereb Cortex. 2016;27(10): doi: /cercor/bhw288 Cereb Cortex | © The Author Published by Oxford University Press. All rights reserved. For Permissions, please
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Figure 3. (A) Response time (RT) as a function of word pair relatedness and side of presentation for the 2 groups separately (B) Regressing RT as a function of word pair relatedness revealed that participants in the LH DA dominance group displayed increased associative priming for word pairs presented to the LVF as compared with the RH DA dominance group. Mean ± SEM. *P < 0.05, **P < 0.01. From: The “Creative Right Brain” Revisited: Individual Creativity and Associative Priming in the Right Hemisphere Relate to Hemispheric Asymmetries in Reward Brain Function Cereb Cortex. 2016;27(10): doi: /cercor/bhw288 Cereb Cortex | © The Author Published by Oxford University Press. All rights reserved. For Permissions, please
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Figure 4. Brain regions displaying associative priming (i. e
Figure 4. Brain regions displaying associative priming (i.e. increased activation as a function of decreased word pair relatedness) for word pairs presented to the LVF. (A) Participants in the LH DA dominance group displayed increased associative priming in the right hemisphere as compared with participants in the RH DA dominance group. (B) Extracted beta values for the parametric modulator with word pair relatedness values from the peak activated voxel in the right inferior parietal lobule (R Inferior PL). (C) Extracted beta values for the parametric modulator with word pair relatedness values from the peak activated voxel in the right inferior frontal gyrus (R Inferior FG). Mean ± SEM. From: The “Creative Right Brain” Revisited: Individual Creativity and Associative Priming in the Right Hemisphere Relate to Hemispheric Asymmetries in Reward Brain Function Cereb Cortex. 2016;27(10): doi: /cercor/bhw288 Cereb Cortex | © The Author Published by Oxford University Press. All rights reserved. For Permissions, please
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