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Ekaterina Ivanova, porträtt. Foto: Niklas Björling.

Ekaterina Ivanova

Doktorand

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Arbetar vid Psykologiska institutionen
Telefon 08-16 38 21
E-post ekaterina.ivanova@psychology.su.se
Besöksadress Frescati hagväg 8
Rum 404
Postadress Psykologiska institutionen 106 91 Stockholm

Publikationer

I urval från Stockholms universitets publikationsdatabas
  • 2016. Ekaterina Ivanova (et al.). Journal of Anxiety Disorders 44, 27-35

    Acceptance and Commitment Therapy (ACT) can be effective in treating anxiety disorders, yet there has been no study on Internet-delivered ACT for social anxiety disorder (SAD) and panic disorder (PD), nor any study investigating whether therapist guidance is superior to unguided self-help when supplemented with a smartphone application. In the current trial, n = 152 participants diagnosed with SAD and/or PD were randomized to therapist-guided or unguided treatment, or a waiting-list control group. Both treatment groups used an Internet-delivered ACT-based treatment program and a smartphone application. Outcome measures were self-rated general and social anxiety and panic symptoms. Treatment groups saw reduced general (d = 0.39) and social anxiety (d = 0.70), but not panic symptoms (d = 0.05) compared to the waiting-list group, yet no differences in outcomes were observed between guided and unguided interventions. We conclude that Internet-delivered ACT is appropriate for treating SAD and potentially PD. Smartphone applications may partially compensate for lack of therapist support.

  • 2016. Ekaterina Ivanova (et al.). EABCT 2016 Abstract Book, 530-530

    Technology-assisted psychological treatments are becoming well-known in the scientific networks throughout the world and are being implemented into routine health care in a number of countries. The interest in evaluating the potential of different devices is growing. The main objective of the current study was to evaluate the effects of guided and unguided computerand smartphone-based Acceptance and Commitment Therapy (ACT) for social anxiety disorder (SAD) and panic disorder (PD).

    A total of 152 participants were randomized into a guided treatment group, an unguided treatment group and a waiting list control group. Both treatment groups got access to a computer-based ACT-treatment and a smartphone application (app) with corresponding content. The eight modules treatment program covered a number of topics such as the nature of anxiety, functional analyses, acceptance, mindfulness and valued actions. The purpose of the app was to make it easier for the participants to access the key points of the program and to do homework assignments in their everyday life. Automatic messages in the app aimed to give feedback to the participants on their work as well as to prompt them to continue with the program. In addition to that, the participants in the guided group got therapist support via the app. The therapists were encouraged to work with each of their patient 15 min/week during the 10 weeks treatment period and focus on motivating, validating and correcting mistakes. On the whole group level GAD-7 was used as the primary outcome measure. LSAS and PDSS-SR were used for subgroup analyses in SAD and PD participants respectively. The measurements were collected at pre-, mid- and post-treatment and at 12-months follow-up.

    There were no significant differences in adherence between the treatment groups except for significantly higher rates of smartphone usage in the guided group. No significant differences in treatment outcome were found between the treatment groups with moderate within-group effects (Cohen’s d = 0.75 for the guided and Cohen’s d = 0.66 for the unguided group). The treated participants improved significantly in comparison to the control group both on the whole group level (between group Cohen’s d = 0.39) and for the participants suffering primarily from SAD (between group Cohen’s d = 0.70). Within group effect sizes were large for the PD-participants (Cohen’s d = 1.00) but the study was very underpowered in this part.

    Discussion. The treatment program as it was used in the present study appeared to be effective in treating social anxiety disorder and decreasing general anxiety symptoms, but the effects are smaller than seen in previous studies. The guided treatment was not clearly superior to the unguided one. The study contributes to the growing body of evidence on technology-assisted ACT.

    Conclusion. Computer- and smartphone-based ACT can be made into an effective treatment for anxiety disorders. A smartphone application seems to have a clear potential to partly compensate for the absence of therapist support which needs to be studied further.

  • 2015. Ekaterina Ivanova (et al.). Abstracts from the 7th Swedish Congress on internet interventions (SWEsrii), 9-9

    Background: As Acceptance and Commitment Therapy (ACT) becomes a part of the clinical practice, the interest for alternative ways of providing it continue to grow. Internet-based CBT, both guided and unguided, has proved to be effective for the treatment of a wide range of psychiatric disorders, including anxiety disorders. Moreover, the tremendous accessibility of smartphones makes them a potentially powerful instrument for providing psychological treatment. The purpose of this study was to investigate the effects of an Internet-based ACT-program for social anxiety disorder and panic disorder using both computers and smartphones, and with and without therapist support. Method: The participants were recruited from the general public by filling out an online screening form, which consisted of LSAS, PDSS-SR, GAD-7, PHQ-9, QOLI (the scales later served as outcome measures) and demographic questions. The individuals who met the inclusion criteria were contacted for a diagnostic telephone interview. The 152 people chosen for participation were then randomized into two treatment groups (guided and unguided) and a waiting list control group. The participants in the treatment groups were given access to an Internet-provided ACT-based treatment program consisting of 8 modules, as well as a smartphone application with content that corresponded to the Internet treatment program. Additionally, the participants in the guided group received minimum therapist support (15 min/week) through the smartphone application from psychology students undergoing their clinical training. The participants worked with the program for 10 weeks. They were evaluated twice during treatment, once after completing treatment, and once again 12-months later as a follow-up measure. A mixed effect model was used to analyze the data. Results: Regardless of diagnosis, as a whole the treated groups showed significant decreases in anxiety, with a moderate within-group effect size. This improvement appeared to be maintained when the groups were evaluated again during the follow-up. The participants suffering primarily from social anxiety disorder showed significant improvements, with moderate within-group effect sizes in both the guided (Cohen's d = 0.79) and unguided group (Cohen's d = 0.71). This improvement also appeared to be maintained when these participants were evaluated during the follow-up. No significant changes were observed in the symptoms of the participants suffering primarily from panic disorder. Discussion: Internet-delivered ACT-based treatment provided via both computer and smartphone can be effective for reducing general anxiety symptoms, as well as social anxiety symptoms. The guided treatment was not clearly superior to the unguided treatment. Some of the study’s uncertainties are likely due to the presence of a large number of different components, which made it difficult to isolate the effects of each individual component.

Visa alla publikationer av Ekaterina Ivanova vid Stockholms universitet

Senast uppdaterad: 17 maj 2017

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