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Borderline personality disorder (BPD) is characterized by impairments in the cognitive control of negative information. These impairments in cognitive control are presumably due to blunted activity of the dorsolateral prefrontal cortex (dlPFC) along with enhanced activations of the limbic system. However, the impact of an excitatory stimulation of the dlPFC still needs to be elucidated. In the present study, we therefore assigned 50 patients with BPD and 50 healthy controls to receive either anodal or sham stimulation of the right dlPFC in a double-blind, randomized, between-subjects design.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Anodal stimulation | Experimental | transcranial DC stimulation : anodal |
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| Sham stimulation | Sham Comparator | transcranial DC stimulation : sham |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| transcranial DC stimulation : anodal | Device | anodal stimulation of the right dlPFC (i.e. F4) for 20 minutes |
|
| Measure | Description | Time Frame |
|---|---|---|
| Response latencies | Response latencies were measured in the context of a delayed working memory task. In this paradigm, each trial started with a fixation cross (1000 ms), followed by the presentation of six target letters (1500 ms), which participants were asked to memorize. After a variable distracter period (i.e., interference duration of 1000, 2000, or 4000 ms), participants were presented a recognition display (until a response was made) and had to decide whether the presented letter was part of the initial set of letters. In half of the trials, the recognition display contained a previously presented target. The distracter period of the experimental paradigm was manipulated with regard to the factors valence (grey background screen, or neutral, or negative stimuli) and interference duration (1000, 2000, or 4000 ms). Neutral and negative affective stimuli were selected from the International Affective Picture System. | Response latencies were exclusively measured during the assigned interventions, which lasted approx. 20 minutes. No further time points were assessed. |
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Inclusion Criteria Borderline Personality Disorder:
Exclusion Criteria Borderline Personality Disorder:
Inclusion Criteria Control Participants:
Exclusion Criteria Control Participants:
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| ID | Term |
|---|---|
| D001883 | Borderline Personality Disorder |
| ID | Term |
|---|---|
| D010554 | Personality Disorders |
| D001523 | Mental Disorders |
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| transcranial DC stimulation : sham | Device | sham stimulation of the right dlPFC (i.e. F4) for 20 minutes |
|