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History of Three-Dimensional Eye Movement Research
Published in Michael Fetter, Thomas Haslwanter, Hubert Misslisch, Douglas Tweed, Three-Dimensional Kinematics of Eye, Head and Limb Movements, 2020
Descartes generalized his idea about reciprocal innervation and described several other examples like thorax movement during respiration, or swallowing. As a related subject, he formulated ideas about multisensory integration of vision, touch, and smell for the recognition of objects and their localization in space.
Brain–Computer Interfaces and Haptics
Published in Chang S. Nam, Anton Nijholt, Fabien Lotte, Brain–Computer Interfaces Handbook, 2018
Multisensory integration. As in many more general HCI systems, haptic displays are often not applied as stand-alone devices but rather as parts of a multimodal system. This will also be the case for touch-based BCIs, which makes multisensory integration a relevant topic, not only from a perceptual and cognitive perspective but also from a neurophysiological perspective. Knowledge on neurophysiological features related to multisensory processing is needed to optimize multisensory BCI systems.
Anatomy
Published in Stanley A. Gelfand, Hearing, 2017
The majority of the ascending fibers from the LL project to the inferior colliculi (IC), which are large nuclei on the right and left sides of the midbrain (see, e.g., Oliver and Morest, 1984; Oliver and Huerta, 1992; Ehret, 1997; Ehret and Romand, 1997). The divisions of the IC have been variously described based on different anatomical and physiological methods (e.g., Rockel and Jones, 1973a,b; Morest and Olivers, 1984). The central nucleus of the IC is the principal way station for auditory signals arising from the LL, while its dorsal cortex and pericentral and external (lateral) nuclei interact with the central nucleus, as well as being involved in many interconnections with other neural systems. Hence, the IC plays a role in multisensory integration. Communication between the inferior colliculi of the two sides occurs via the commissure of the inferior colliculus. The auditory pathway continues from the IC to the medial geniculate body of the thalamus by way of the brachium of the inferior colliculus, which also includes ascending fibers that bypass the IC (Ferraro and Minckler, 1977b). Several informative discussions of the inferior colliculus are available for students interested in further study (e.g., Oliver and Huerta, 1992; Ehret, 1997; Ehret and Romand, 1997).
Assessing lesion location, visual midline perception and proprioception may assist outcome predictions for people affected by lateropulsion
Published in Disability and Rehabilitation, 2023
The central processing of vestibular inputs commences in the vestibular nucleus which is located in the medulla and pons. Ipsilateral inputs then ascend the brain stem bilaterally as they travel to the posterolateral and paramedial nuclei of the thalamus. The first location of multisensory integration is between the vestibular and visual systems in the superior collicuili of the midbrain, where the vestibulo-ocular reflex is mediated. Another location of multisensory integration is the posterolateral nucleus of the thalamus where both vestibular and proprioceptive inputs converge. From the thalamus, vestibular inputs travel to the non-dominant parieto-insular-vestibular cortex which testifies to lateralisation in the cortical processing of vestibular inputs [6]. Vestibular inputs also travel to the cerebellum, thus a large portion of cerebellar lesions can also manifest as lateropulsion [7].
Multisensory perception is not influenced by previous concussion history in retired rugby union players
Published in Brain Injury, 2022
Joice Cunningham, Alan O’Dowd, Steven P. Broglio, Fiona N. Newell, Áine Kelly, Oisín Joyce, Julia Januszewski, Fiona Wilson
The current standard battery of tests for assessing and diagnosing concussions does not include a perceptual task. Multisensory integration is essential in facilitating higher order cognitive processes such as attention and executive function (49). The SIFI task is sensitive at detecting subtle changes in perceptual ability., with increased susceptibility associatedwith increasing age (31) and following acute concussion (36). Therefore, we hypothesized that long-term damage to the nervous system associated with concussion history may result in expediated decline in efficiency at coordinating the processing and integration of sensory information. Hence, that concussion history may adversely affect multisensory processing ability and potential early onset cognitive deterioration may be reflected by reduction in performance on the SIFI Task.
Multisensory stimulation for the rehabilitation of unilateral spatial neglect
Published in Neuropsychological Rehabilitation, 2021
Luca Zigiotto, Alessio Damora, Federica Albini, Carlotta Casati, Gessica Scrocco, Mauro Mancuso, Luigi Tesio, Giuseppe Vallar, Nadia Bolognini
In this context, the present study explored the potential clinical efficacy of a novel bottom-up protocol for USN, based on the activation of multisensory integration mechanisms. Multisensory integration refers to the ability to combine multiple sources of sensory information into a unified percept (Stein & Meredith, 1993; Stein & Stanford, 2008). A reliable and robust detection and decoding of sensory input is central to the successful interaction of humans with the world (Ernst & Bülthoff, 2004): combining information from different sensory systems is one effective way to achieve this (Alais et al., 2011). On the other side of the coin, a flexible and selective weighting (up to suppression) of different kinds of sensory inflows is crucial to cope with conflicting information (e.g., visual and proprioceptive inputs during balance; Peterka, 2018).