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Human information processing is limited by attentional resources. Two questions that are discussed in multisensory research are (1) whether there are separate spatial attentional resources for each sensory modality and (2) whether multisensory integration is influenced by attentional load. We investigated these questions using a dual task paradigm: Participants performed two spatial tasks (a multiple object tracking [‘MOT’] task and a localization [‘LOC’] task) either separately (single task condition) or simultaneously (dual task condition). In the MOT task, participants visually tracked a small subset of several randomly moving objects. In the LOC task, participants either received visual, tactile, or redundant visual and tactile location cues. In the dual task condition, we found a substantial decrease in participants’ performance and an increase in participants’ mental effort (indicated by an increase in pupil size) relative to the single task condition. Importantly, participants performed equally well in the dual task condition regardless of whether they received visual, tactile, or redundant multisensory (visual and tactile) location cues in the LOC task. This result suggests that having spatial information coming from different modalities does not facilitate performance, thereby indicating shared spatial attentional resources for the tactile and visual modality. Also, we found that participants integrated redundant multisensory information optimally even when they experienced additional attentional load in the dual task condition. Overall, findings suggest that (1) spatial attentional resources for the tactile and visual modality overlap and that (2) the integration of spatial cues from these two modalities occurs at an early pre-attentive processing stage.
Liber Amicorum Rüdiger Wolfrum
Volume Editors:
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This Liber Amicorum, dedicated to Judge Rüdiger Wolfrum of the International Tribunal for the Law of the Sea, highlights paradigmatic changes in international law, a body of law which moved during the 20th century from a law of coexistence to one of cooperation and which is now about to reflect notions of solidarity going even beyond cooperative undertakings. This leitmotif of Rüdiger Wolfrum’s academic research and judgeship is represented in a comprehensive collection of essays by eminent scholars and practitioners of international law covering specific aspects of international law, including law of the sea, human rights, international environmental law, international dispute settlement, peace and security, global governance and domestic law. With its multifaceted and comprehensive overview of the evolution of international law in recent years and detailed study of current challenges this collection is a unique source of insight for all those interested in this fascinating field of law.
Liber Amicorum Rüdiger Wolfrum
Volume Editors:
, , , , , , and
This Liber Amicorum, dedicated to Judge Rüdiger Wolfrum of the International Tribunal for the Law of the Sea, highlights paradigmatic changes in international law, a body of law which moved during the 20th century from a law of coexistence to one of cooperation and which is now about to reflect notions of solidarity going even beyond cooperative undertakings. This leitmotif of Rüdiger Wolfrum’s academic research and judgeship is represented in a comprehensive collection of essays by eminent scholars and practitioners of international law covering specific aspects of international law, including law of the sea, human rights, international environmental law, international dispute settlement, peace and security, global governance and domestic law. With its multifaceted and comprehensive overview of the evolution of international law in recent years and detailed study of current challenges this collection is a unique source of insight for all those interested in this fascinating field of law.
Page:12