Research is needed to explore whether cognitive flexibility may account for potential gender differences after mindfulness-based interventions.

To compare the effectiveness of Acceptance and Commitment Therapy (ACT) versus a Mindfulness-based Emotional Regulation (MER) intervention on cognitive flexibility according to gender.

This study was carried out in a Mental Health Unit in Spain (Colmenar Viejo, Madrid). Firstly, 80 adult patients with anxiety disorders were randomized according to the score on the Acceptance and Action Questionnaire-II (blocking factor), of whom, 64 patients decided to participate (mean age = 40.66, S.D. = 11.43; 40 females). Each intervention was weekly, during 8 weeks, guided by two Clinical Psychology residents. A 2x2x2 mixed ANOVA (pre-post change x intervention type x gender) was conducted, with Sidak-correction post hoc tests. The dependent variable was the score on TMT-B.

A natural logarithmic transformation was conducted to correct violation of normality and homoscedasticity assumptions. No statistically significant differences were observed on age or gender between interventions. No statistically significant interaction effect was observed between pre-post change x intervention x gender [F(1, 52) = .014, p = .907]. An interaction effect was observed between pre-post change x intervention [F(1, 52) = 4.180, p = .046; statistical power observed = 52%]: while TMT-B improved after ACT (p = .001; Cohen’s d = 0.607), there were no changes after MER (p = .367; Cohen’s d = 0.097).

These medium effect-size results confirm previous findings of our research team indicating cognitive flexibility improves after ACT but not after MER.

No significant relationships.

Results about the effects of mindfulness training on the executive function of inhibition are mixed. Research about interventions in anxiety disorders is needed to exam the differential efficacy among men and women, and the factors involved in those potential gender differences.

To compare the effectiveness of Acceptance and Commitment Therapy (ACT) versus a Mindfulness-based Emotional Regulation (MER) intervention on inhibitory control according to gender.

This study was carried out in a Mental Health Unit in Spain (Colmenar Viejo, Madrid). Firstly, 80 adult patients with anxiety disorders were randomized according to the score on the Acceptance and Action Questionnaire-II (blocking factor), of whom, 64 patients decided to participate (mean age = 40.66, S.D. = 11.43; 40 females). Each intervention was weekly, during 8 weeks, guided by two Clinical Psychology residents. A 2x2x2 mixed ANOVA (pre-post change x intervention type x gender) was conducted, with Sidak-correction post-hoc tests. The dependent variable was the Interference score of the Stroop test.

Normality and homoscedasticity assumptions were met. No statistically significant differences were observed on age or gender between interventions. A statistically significant interaction effect was observed between pre-post change x intervention x gender on Interference [F(1, 52) = 5.004, p = .030; statistical power observed = 59.3%]. Improvement in interference was larger for women after ACT (p = .000) and for men after MER (p = .002).

These preliminary results show improvements in inhibition after the two interventions examined. However, each treatment maximizes improvement in different ways according to gender. Further research is required.

No significant relationships.

There are no studies which address the relationship between mindfulness and cognitive flexibility in interventions carried out online. This is the first study to examine the effect of two online mindfulness-based interventions on this cognitive function.

To assess changes on cognitive flexibility after two online mindfulness-based group interventions in adult patients with anxiety disorders.

This study was carried out in a Mental Health Unit in Spain (Colmenar Viejo, Madrid). Thirteen adult patients (age mean = 51.69 years, ranging from 33 to 69 years, S.D. = 11.56) with anxiety disorders completed the interventions. The group treatments were Acceptance and Commitment Therapy and a Mindfulness-based Emotional Regulation intervention, during 8 weeks, guided by two Clinical Psychology residents. Both interventions were carried out online. The dependent variable was the score on the TMT-B (seconds). A comparison of paired-means was conducted. Statistical significance was set at p < .05.

The normality assumption was met. Statistical power observed = 70.0%. The paired t-test showed statistically significant change between pre-treatment and post-treatment (p = 0.019; Cohen’s d = 0.75), indicating improvement on cognitive flexibility.

These results show a statistically significant and medium/large effect-size change in cognitive flexibility after the two online interventions based on mindfulness. A larger sample size is required to confirm these results. Moreover, other studies need to examine the reliable change on this neuropsychological outcome.

No significant relationships.

The relationship between attentional functioning and mindfulness is an intensive field of study, mainly in face-to-face interventions. However, no neuropsychological study addressed the effect of online mindfulness-based interventions on this cognitive function.

To assess changes on attentional functioning after two online mindfulness-based group interventions in adult patients with anxiety disorders.

This study was carried out in a Mental Health Unit in Spain (Colmenar Viejo, Madrid). Thirteen adult patients (age mean = 51.69 years, ranging from 33 to 69 years, S.D. = 11.56) with anxiety disorders completed the interventions. The group treatments were Acceptance and Commitment Therapy and a Mindfulness-based Emotional Regulation intervention, during 8 weeks, guided by two Clinical Psychology residents. Both interventions were carried out online. The dependent variables were the scores on the TMT-A (seconds), Digit span forward and Longest digit span forward (WAIS-IV). A comparison of paired-means was conducted. Statistical significance was set at p < .05.

The normality assumption was met except for Longest digit span forward. The paired t-test showed statistically significant change between pre-treatment and post-treatment on TMT-A [t(12)= 3.81; p = 0.002; Cohen’s d = 1.056; statistical power observed = 94.0%], but not on Digit span forward (p = .45). Wilcoxon signed ranks test showed no statistically significant change on Longest digit span forward (p = .56).

These results show a large improvement on visual attention and speed of visuomotor tracking, but not on auditive attention, after both online mindfulness-based group interventions.

No significant relationships.

There is paucity of empirical studies which compare various mindfulness-based interventions on speed of visuomotor tracking and also analyse the differential effect of gender.

To compare the effectiveness of Acceptance and Commitment Therapy (ACT) versus a Mindfulness-based Emotional Regulation (MER) intervention on speed of visuomotor tracking according to gender.

This study was carried out in a Mental Health Unit in Spain (Colmenar Viejo, Madrid). Firstly, 80 adult patients with anxiety disorders were randomized according to the score on the Acceptance and Action Questionnaire-II (blocking factor), of whom, 64 patients decided to participate (mean age = 40.66, S.D. = 11.43; 40 females). Each intervention was weekly, during 8 weeks, guided by two Clinical Psychology residents. A 2x2x2 mixed ANOVA (pre-post change x intervention type x gender) was conducted, with Sidak-correction post-hoc tests. The dependent variable was the score on TMT-A.

Normality and homoscedasticity assumptions were met. No statistically significant differences were observed on age or gender between interventions. No statistically significant interaction effect was observed between pre-post change x intervention x gender on TMT-A [F(1, 52) = 2.867, p = .096, statistical power observed = 38.3%]. However, simple effects were statistically significant: while males improved on TMT-A after MER (p = .000; Cohen’s d = 1.092), females did so after ACT (p = .000; Cohen’s d = 1.506).

These results show that gender moderates the improvement of the two mindfulness-based interventions examined on the speed of visuomotor tracking. More research is needed to confirm these findings.

No significant relationships.