Comparison of Functional Connectivity in the Prefrontal Cortex during a Simple and an Emotional Go/No-Go Task in Female versus Male Groups: An fNIRS Study

Figures

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  Figure 1. Experimental protocol; (a) experimental paradigm during a simple GNG task, letter Y: Go stimulus, letter X: No-Go stimulus, + sign: inter-stimulus rest. Letter Y was replaced by a photo of a neutral face and letter X was replaced by a photo of a happy or angry face during the emotional GNG task; (b) location of 16 fNIRS channels in a brain model.

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  Figure 2. Averaged functional connectivity across all subjects in three conditions; (a) vanilla baseline, (b) simple GNG, and (c) emotional GNG. Red edge: connections that have connectivity greater than 0.5, yellow edge: other connections.

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  Figure 3. Brain map depicting correlation coefficients between the simple GNG connectivity and subject performance; (a–c) female, (d–f) male; (a,d), omission error, (b,e) commission error, (c,f) response time. Red: positive correlation, blue: negative correlation, thick edge: connection with significant correlation coefficient (p-value < 0.05).

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  Figure 4. Brain map depicting correlation coefficient between the emotional GNG connectivity and subject performance; (a–c) female, (d–f) male; (a,d) omission error, (b,e) commission error, (c,f) response time. Red: positive correlation, blue: negative correlation, thick edge: connection with significant correlation coefficient (p-value < 0.05).

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  Figure 5. Connection with low correlation coefficients between conditions; (a) female, (b) male. Red: baseline–simple GNG, green: baseline–emotional GNG, cyan: both baseline–simple GNG and baseline–emotional GNG.