@article{23891,
  abstract     = {{Within a pre-post-design, we scrutinized the effects of normative augmented feedback with positive and negative valence on learning motor accuracy, consistency as well as automaticity by means of a dual-task paradigm. Forty-two healthy physical education students were instructed to produce an arm-movement sequence as precisely as possible with regard to three spatial reversal points within a time limit of 1200 ms. Twenty-eight practiced an elbow-extension-flexion-sequence (690 trials) and 14 participants were tested as a control group without feedback practice. Valence of normative feedback was systematically manipulated by means of reference lines in a visual feedback display. The reference lines indicated performance of a putative peer-group either to be superior (negative valence, Normative-Negative-Group) or inferior (positive valence, Normative-Positive-Group) to participants’ actual performance.

As a result, dual-task costs (n-back error) significantly decreased solely in the Normative-Positive-Group, p = .003, η2p = .51, but in no other group. Surprisingly, the mean absolute error for the motor task significantly decreased (i.e., precision increased) only in the Normative-Negative-Group with a large effect size, but in none of the other groups. Motor consistency was not significantly affected by the valence of normative feedback. According to the hypotheses of error-provoked attentional control, positive feedback-valence appears to enhance skill automatization, while – unexpectedly – only negative feedback-valence seems to enhance movement precision, which may be explained by effects of feedback valence on the learners aspiration level.}},
  author       = {{Zobe, Christina and Krause, Daniel and Blischke, Klaus}},
  journal      = {{Human Movement Science}},
  keywords     = {{Augmented feedback Automaticity Dual task Motor learning}},
  pages        = {{529--540}},
  publisher    = {{Elsevier}},
  title        = {{{Dissociative effects of normative feedback on motor automaticity and motor accuracy in learning an arm movement sequence}}},
  doi          = {{https://doi.org/10.1016/j.humov.2019.06.004}},
  volume       = {{66}},
  year         = {{2019}},
}

@article{48703,
  author       = {{Zobe, Christina and Krause, Daniel and Blischke, Klaus}},
  issn         = {{0167-9457}},
  journal      = {{Human Movement Science}},
  keywords     = {{Experimental and Cognitive Psychology, Orthopedics and Sports Medicine, General Medicine, Biophysics}},
  pages        = {{529--540}},
  publisher    = {{Elsevier BV}},
  title        = {{{Dissociative effects of normative feedback on motor automaticity and motor accuracy in learning an arm movement sequence}}},
  doi          = {{10.1016/j.humov.2019.06.004}},
  volume       = {{66}},
  year         = {{2019}},
}

@article{48705,
  author       = {{Krause, Daniel and Agethen, Manfred and Zobe, Christina}},
  issn         = {{0022-2895}},
  journal      = {{Journal of Motor Behavior}},
  keywords     = {{Cognitive Neuroscience, Experimental and Cognitive Psychology, Orthopedics and Sports Medicine, Biophysics}},
  number       = {{2}},
  pages        = {{144--154}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Error Feedback Frequency Affects Automaticity But Not Accuracy and Consistency After Extensive Motor Skill Practice}}},
  doi          = {{10.1080/00222895.2017.1327406}},
  volume       = {{50}},
  year         = {{2017}},
}

@phdthesis{23890,
  author       = {{Zobe, Christina}},
  pages        = {{258}},
  title        = {{{Valenzabhängige Effekte normativen Feedbacks auf die Präzisionsleistung und Automatisierung beim motorischen Lernen}}},
  doi          = {{10.17619/UNIPB/1-151}},
  year         = {{2017}},
}