At last! 1.5 years after star­ting to write, the arti­cle Eva­lua­tion of Visual and Auditory Feed­back in Vir­tual Obst­a­cle Wal­king has been publis­hed by Pre­sence. This is the final step, now it’s really over. I hope that my next publi­ca­ti­ons will go a little bit smoo­ther, but you never know what review­ers you get.

Aut­hors: Mathias Well­ner, ­Audrey Schau­fel­ber­ger,­ Joa­chim v. Zit­ze­witz, Robert Riener

Title: Eva­lua­tion of Visual and Auditory Feed­back in Vir­tual Obst­a­cle Walking

Jour­nal: Pre­sence: Tele­ope­ra­tors and Vir­tual Environments

Abstract: This paper descri­bes eva­lua­tion expe­ri­ments for visual and auditory feed­back in a vir­tual obst­a­cle wal­king sce­na­rio. Two stu­dies with healthy sub­jects were car­ried out using the actua­ted gait ortho­sis Loko­mat. Con­trol­led fac­tors for the visual feed­back expe­ri­ment were three dif­fe­rent per­spec­tives and 2D/​3D vision. In the auditory feed­back expe­ri­ment, con­trol­led fac­tors were rhyth­mic dis­tance feed­back and gra­dual foot cle­arance feed­back. For the visual and auditory feed­back expe­ri­ments, out­come was asses­sed with task-​​specific per­for­mance para­me­ters and ques­ti­onn­ai­res. Results for visual feed­back indi­cate that the cho­sen side per­spec­tive is supe­rior to behind and ego per­spec­tives. It is also shown that 3D vision does not reduce the num­ber of obst­a­cle hits com­pa­red to 2D vision. Fur­ther­more, it is demons­tra­ted that adding con­ti­nuous auditory feed­back made sub­jects walk fas­ter com­pa­red to the exclu­sive use of visual feed­back. Sub­jects rated auditory dis­tance feed­back as more hel­pful than auditory foot cle­arance feed­back. The­re­fore, we sug­gest using side per­spec­tive and auditory feed­back on obst­a­cle distance.

The next publi­ca­tion is alre­ady in the queue and will tar­get one study with the M3 rowing simu­la­tor.

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