Across a number of sign languages, temporal and spatial characteristics of dominant hand articulation are used to express semantic and grammatical features. In this study of Austrian Sign Language (\"Osterreichische Geb\"ardensprache, or \"OGS), motion capture data of four Deaf signers is used to quantitatively characterize the kinematic parameters of sign production in verbs and adjectives. We investigate (1) the difference in production between verbs involving a natural endpoint (telic verbs; e.g. arrive) and verbs lacking an endpoint (atelic verbs; e.g. analyze), and (2) adjective signs in intensified vs. non-intensified (plain) forms. Motion capture data analysis using linear-mixed effects models (LME) indicates that both the endpoint marking in verbs, as well as marking of intensification in adjectives, are expressed by movement modulation in \"OGS. While the semantic distinction between verb types (telic/atelic) is marked by higher peak velocity and shorter duration for telic signs compared to atelic ones, the grammatical distinction (intensification) in adjectives is expressed by longer duration for intensified compared to non-intensified adjectives. The observed individual differences of signers might be interpreted as personal signing style.

翻译：在多种手语中，主导手发音的时空特征被用于表达语义和语法特征。本研究以奥地利手语（Österreichische Gebärdensprache，简称ÖGS）为对象，采用四位聋人签署者的运动捕捉数据，对手势动词和形容词生成的运动学参数进行量化表征。我们探讨：(1) 具有自然终点的动词（有界动词，如“到达”）与缺乏终点的动词（无界动词，如“分析”）在生成上的差异；(2) 形容词符号的强化形式与非强化形式（普通形式）。基于线性混合效应模型（LME）的运动捕捉数据分析表明：ÖGS中动词的终点标记与形容词的强化标记均通过运动调制实现。动词类型（有界/无界）的语义区分表现为，有界符号相较于无界符号具有更高的峰值速度和更短的持续时间；而形容词的语法区分（强化）则表现为，强化形容词较非强化形容词具有更长的持续时间。观察到的个体差异可能反映签署者个人风格。