Dual-task performance depends on both modalities (e.g., vision, audition, haptics) and task types (spatial or object-based), and the order by which different task types are organized. Previous studies on haptic and especially auditory-haptic attentional blink (AB) are scarce, and the effect of task types and their order have not been fully explored. In this study, 96 participants, divided into four groups of task type combinations, identified auditory or haptic Target 1 (T1) and haptic Target 2 (T2) in rapid series of sounds and forces. We observed a haptic AB (i.e., the accuracy of identifying T2 increased with increasing stimulus onset asynchrony between T1 and T2) in spatial, object-based, and object-spatial tasks, but not in spatial-object task. Changing the modality of an object-based T1 from haptics to audition eliminated the AB, but similar haptic-to-auditory change of the modality of a spatial T1 had no effect on the AB (if it exists). Our findings fill a gap in the literature regarding the auditory-haptic AB, and substantiate the importance of modalities, task types and their order, and the interaction between them. These findings were explained by how the cerebral cortex is organized for processing spatial and object-based information in different modalities.

中文翻译：

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空间和基于对象的任务中的触觉和听觉-触觉注意眨眼

双任务性能取决于两种模式（例如，视觉、听觉、触觉）和任务类型（空间或基于对象），以及不同任务类型的组织顺序。以前对触觉，尤其是听觉触觉注意眨眼 (AB) 的研究很少，任务类型及其顺序的影响尚未得到充分探索。在这项研究中，96 名参与者分为四组任务类型组合，在快速系列的声音和力量中识别出听觉或触觉目标 1 (T1) 和触觉目标 2 (T2)。我们在空间、基于对象和对象空间任务中观察到触觉 AB（即，识别 T2 的准确性随着 T1 和 T2 之间刺激开始不同步的增加而增加），但在空间对象任务中没有。将基于对象的 T1 的模式从触觉更改为试听消除了 AB，但是空间 T1 模态的类似触觉到听觉变化对 AB（如果存在）没有影响。我们的发现填补了有关听觉触觉 AB 的文献空白，并证实了模式、任务类型及其顺序以及它们之间相互作用的重要性。这些发现可以通过大脑皮层如何组织以不同方式处理空间和基于对象的信息来解释。