Sex Differences in User Experience in a VR EEG Neurofeedback Paradigm

Berger, Lisa; Wood, Guilherme; Neuper, Christa; Kober, Silvia Erika

doi:10.1007/978-3-030-92182-8_11

Cited by 4 publications

(5 citation statements)

References 29 publications

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“…We expected to observe group differences in the user experience of how the technology and individual performance after training are perceived, subjective feelings of flow or presence, and CS. In line with previous VR-based NF training studies [27], we assessed mood, CS, flow, participants' attitude (e.g., technology acceptance, use, fear, curiosity, interest, skepticism) towards VR technology, subjective VR experience (immersion), subjectively experienced level of control and concentration during NF training, perceived success, fun, as well as physical conditions such as pressure on the head that can occur when wearing the VR headset over the EEG electrodes [27]. In the present AR-based NF study, we also compared the user experience of a group receiving one session of AR-based NF training with that of a group receiving one session of 2D conventional NF training.…”

Section: Introductionsupporting

confidence: 89%

“…Prior VR-based NF studies using the same VR headset mounted over EEG electrodes also reported some sort of physical discomfort during the NF training. Berger et al found that mainly female participants report such negative physical conditions while wearing the VR headset during NF training [27]. In the present study, a lower subjectively experienced physical discomfort in the AR group during NF training compared to the 2D group might be related to a stronger involvement or engagement in the task [41,42], which is also reflected in a tendentially higher flow experience in the AR group and a higher feeling of control and perceived success in the AR group compared to the 2D group.…”

Section: Discussionmentioning

confidence: 99%

“…It was, for example, asked whether pressure on the head or headache was experienced throughout the experiment, with the opportunity to explain it in more detail. This questionnaire was already used in several previous studies [27].…”

Section: Vasmentioning

confidence: 99%

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User Experience in Neurofeedback Applications Using AR as Feedback Modality

Berger,

Wood,

Kober

2024

Computers

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Neurofeedback (NF) is a brain–computer interface in which users can learn to modulate their own brain activation while receiving real-time feedback thereof. To increase motivation and adherence to training, virtual reality has recently been used as a feedback modality. In the presented study, we focused on the effects of augmented reality (AR) based visual feedback on subjective user experience, including positive/negative affect, cybersickness, flow experience, and experience with the use of this technology, and compared it with a traditional 2D feedback modality. Also, half of the participants got real feedback and the other half got sham feedback. All participants performed one NF training session, in which they tried to increase their sensorimotor rhythm (SMR, 12–15 Hz) over central brain areas. Forty-four participants received conventional 2D visual feedback (moving bars on a conventional computer screen) about real-time changes in SMR activity, while 45 participants received AR feedback (3D virtual flowers grew out of a real pot). The subjective user experience differed in several points between the groups. Participants from the AR group received a tendentially higher flow score, and the AR sham group perceived a tendentially higher feeling of flow than the 2D sham group. Further, participants from the AR group reported a higher technology usability, experienced a higher feeling of control, and perceived themselves as more successful than those from the 2D group. Psychological factors like this are crucial for NF training motivation and success. In the 2D group, participants reported more concern related to their performance, a tendentially higher technology anxiety, and also more physical discomfort. These results show the potential advantage of the use of AR-based feedback in NF applications over traditional feedback modalities.

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Section: Introductionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

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User Experience in Neurofeedback Applications Using AR as Feedback Modality

Berger,

Wood,

Kober

2024

Computers

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“…This shows that it is important to assess user experience in NF studies. As reported in Berger et al (2021), we also measured some further psychological factors such as subjective feeling of presence and flow. However, no 10.3389/fnhum.2022.952261 group differences in those domains were found.…”

Section: Discussion 3d Vs 2d Feedback On Electroencephalography Powermentioning

confidence: 99%

“…Before and after the intervention participants had to fill out subjective questionnaires on motivation, subjective feeling of presence and flow, on usage of technology and cybersickness. The results of which are presented elsewhere (Berger et al, 2021). The present paper focusses on effects on NF performance and concomitant changes in other EEG parameters.…”

Section: Neurofeedback Trainingmentioning

confidence: 99%

Effects of virtual reality-based feedback on neurofeedback training performance—A sham-controlled study

Berger

Wood

Kober

2022

Front. Hum. Neurosci.

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Electroencephalography-neurofeedback (EEG-NF) has become a valuable tool in the field of psychology, e.g., to improve cognitive function. Nevertheless, a large percentage of NF users seem to be unable to control their own brain activation. Therefore, the aim of this study was to examine whether a different kind of visual feedback could positively influence NF performance after one training session. Virtual reality (VR) seems to have beneficial training effects and has already been reported to increase motivational training aspects. In the present study, we tested 61 young healthy adults (mean age: 23.48 years; 28 female) to investigate, whether 3D VR-based NF training has a more beneficial effect on the sensorimotor rhythm (SMR, 12–15 Hz) power increase than a mere 2D conventional NF paradigm. In the 3D group, participants had to roll a ball along a predefined path in an immersive virtual environment, whereas the 2D group had to increase the height of a bar. Both paradigms were presented using VR goggles. Participants completed one baseline and six feedback runs with 3 min each, in which they should try to increase SMR power over Cz. Half of the participants received real feedback whereas the other half received sham feedback. Participants receiving 3D VR-based feedback showed a linear increase in SMR power over the feedback runs within one training session. This was the case for the real as well as for the sham 3D feedback group and might be related to more general VR-related effects. The 2D group receiving the conventional bar feedback showed no changes in SMR power over the feedback runs. The present study underlines that the visual feedback modality has differential effects on the NF training performance and that 3D VR-based feedback has advantages over conventional 2D feedback.

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