By combining both measures and differentially manipulating cognitive and emotional aspects, more can be learned about the relation between the brain response and the bodily response and the differential impact of cognitive and emotional task aspects on these measures.
On P200 the brain region that differs between brain responses for high arousal and low arousal stimuli is the centroparietal region of the right hemisphere and the temporal region of the left hemisphere.
Comparisons between brain responses to presentation of the natural and manipulated versions of BOS (including BOS ripples) were made to determine if the sequence of spectro-temporal modulations and phase of the sound envelopes are relevant for auditory responses in Field L sub-regions L2a, L2b and L3, and secondary regions NCM and CMM.
To further investigate the link between brain responses to food cues, food hedonics and potential mediators, correlations between BOLD activation (adjusted for age, gender and BMI) and ice cream palatability or gut hormones/bile acids/dumping syndrome scores were performed to determine Pearson, or if not normally distributed Spearman, correlation coefficients.
Comparisons between brain responses to presentation of the natural BOS and familiar CON were made to determine if there is a preferential response in Field L sub-regions, NCM or CMM to either of these songs with a different biological relevance, namely song learning and maintenance (BOS) and song recognition (familiar CON).
Secondly, in order to investigate whether the relationship between empathic brain responses and alexithymia varies as a function of group, we performed a Potthoff (1966) analysis to test the null hypothesis of no difference between groups in the correlation coefficients, slopes, and intercepts of the two regressions.
Two different analysis window durations were utilized when making statistical comparisons between brain responses during the SV and PB conditions.
To distinguish between brain responses reflecting the impact of vs. coping with emotional distraction, brain-behavioural correlations were calculated between activity in response to the transient anxiety-inducing emotional distraction and the behavioural measures.
