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Markus Wieland

Publications and source records attributed to Markus Wieland.

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The Ambivalent Experience of Eye Contact for People with Visual Impairments: Mechanisms and Design Challenges

In mixed-ability collaboration, eye contact is often treated as a default cue for attention and turn-taking. As these signals are primarily visual, they are not reliably accessible to people with visual impairments. While prior work emphasized technical solutions, mechanism-level explanations of their experiences with sighted partners remain scarce. We interviewed 17 people with visual impairments about everyday interactions across work, education, and social settings. Using a critical-realist lens, we link events to plausible causal mechanisms and identify three recurring mechanisms: First, when gaze cannot allocate the floor, addressability hinges on explicit naming. Second, unclear speech entry cues and ongoing access work split attention and build fatigue, sometimes leading to withdrawal. Third, eye-contact norms can skew judgments of participation, prompting active management of visibility. We translate these mechanisms into five design challenges that reframe accessible eye contact as supporting configurable interaction contracts rather than merely making gaze visible.

cs.HC

Challenges and Opportunities for Inclusive Space Missions

People with impairments are not able to participate in space missions. However, this is not because they cannot; instead, spacecraft have not been designed for them. Therefore, instead of simply excluding people with impairments, they should be included in the design process. This may also help astronauts suffering from fatigue or accidents. Indeed, several impairments can occur due to the effects of microgravity on the body and psychological factors during long space missions. In this paper, we describe the idea of including people with all types of impairments in the design process of interactive space systems to obtain, as a result, systems that can also be used by astronauts suffering from a temporary or situational impairment during a long space flight. To this end, we have described solutions for some types of impairments to ensure the use of interactive systems with permanent, temporary, or situational impairments. The benefits from the participation of people with impairments also bring the idea of inclusion in space a bit closer: supporting people with impairments in space by designing appropriate systems that make space accessible.

cs.HC