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Multisensory Research

Yasmina Jraissati, Nadiya Slobodenyuk, Ali Kanso, Lama Ghanem, Imad Elhajj
Cross-modal associations refer to non-arbitrary associations of features across sensory modalities. Such associations have been observed between many different sensory features. One association that has rarely been studied so far is between touch and color. In this study, participants were asked to match tactile and haptic adjectives to color samples shown individually on a screen. They could select one to 11 tactile and haptic terms, presented in 11 pairs of opposed adjectives. The results showed a regular pattern in the way tactile and haptic terms were matched to color...
2016: Multisensory Research
Tessa M van Leeuwen, Mark Dingemanse, Büşra Todil, Amira Agameya, Asifa Majid
Numerous studies demonstrate people associate colors with letters and numbers in systematic ways. But most of these studies rely on speakers of English, or closely related languages. This makes it difficult to know how generalizable these findings are, or what factors might underlie these associations. We investigated letter-color and number-color associations in Arabic speakers, who have a different writing system and unusual word structure compared to Standard Average European languages. We also aimed to identify grapheme-color synaesthetes (people who have conscious color experiences with letters and numbers)...
2016: Multisensory Research
Carlos Velasco, Andy Woods, Jason Liu, Charles Spence
Taste liking influences the way in which people match tastes to shapes. However, taste-shape matching cannot be explained entirely by taste hedonics. Here, we assess whether variations in taste intensity influence such crossmodal correspondences. Participants were presented with five basic tastants in two concentrations and had to rate them on roundness/angularity shape scales, as well as in terms of liking, and intensity. The results revealed that taste quality, intensity, and participants' liking of the taste significantly predicted the roundness/angularity of the tastants...
2016: Multisensory Research
Qian Wang, Charles Spence
We report two experiments designed to investigate the consequences of manipulating the harmonic content of background music on taste perception. The participants in the present study evaluated samples of mixed fruit juice whilst listening to soundtracks that had either been harmonised with consonant or dissonant musical intervals. Each sample of juice was rated on three computer-based scales: One scale was anchored with the words sour and sweet, while the other two scales involved hedonic ratings of the music and of the juice...
2016: Multisensory Research
Stephen E Palmer, Thomas A Langlois, Karen B Schloss
Prior research has shown that non-synesthetes' color associations to classical orchestral music are strongly mediated by emotion. The present study examines similar cross-modal music-to-color associations for much better controlled musical stimuli: 64 single-line piano melodies that were generated from four basic melodies by Mozart, whose global musical parameters were manipulated in tempo(slow/fast), note-density (sparse/dense), mode (major/minor) and pitch-height (low/high). Participants first chose the three colors (from 37) that they judged to be most consistent with (and, later, the three that were most inconsistent with) the music they were hearing...
2016: Multisensory Research
Roberta Etzi, Charles Spence, Massimiliano Zampini, Alberto Gallace
Over the last decade, scientists working on the topic of multisensory integration, as well as designers and marketers involved in trying to understand consumer behavior, have become increasingly interested in the non-arbitrary associations (e.g., sound symbolism) between different sensorial attributes of the stimuli they work with. Nevertheless, to date, little research in this area has investigated the presence of these crossmodal correspondences in the tactile evaluation of everyday materials. Here, we explore the presence and nature of the associations between tactile sensations, the sound of non-words, and people's emotional states...
2016: Multisensory Research
Michael J Carnevale, Laurence R Harris
Low- and high-pitched sounds are perceptually associated with low and high visuospatial elevations, respectively. The spatial properties of this association are not well understood. Here we report two experiments that investigated whether low and high tones can be used as spatial cues to upright for self-orientation and identified the spatial frame(s) of reference used in perceptually binding auditory pitch to visuospatial 'up' and 'down'. In experiment 1, participants' perceptual upright (PU) was measured while lying on their right side with and without high- and low-pitched sounds played through speakers above their left ear and below their right ear...
2016: Multisensory Research
Elena Nava, Massimo Grassi, Chiara Turati
Interest in crossmodal correspondences has recently seen a renaissance thanks to numerous studies in human adults. Yet, still very little is known about crossmodal correspondences in children, particularly in sensory pairings other than audition and vision. In the current study, we investigated whether 4-5-year-old children match auditory pitch to the spatial motion of visual objects (audio-visual condition). In addition, we investigated whether this correspondence extends to touch, i.e., whether children also match auditory pitch to the spatial motion of touch (audio-tactile condition) and the spatial motion of visual objects to touch (visuo-tactile condition)...
2016: Multisensory Research
Victoria F Ratcliffe, Anna M Taylor, David Reby
For both humans and other animals, the ability to combine information obtained through different senses is fundamental to the perception of the environment. It is well established that humans form systematic cross-modal correspondences between stimulus features that can facilitate the accurate combination of sensory percepts. However, the evolutionary origins of the perceptual and cognitive mechanisms involved in these cross-modal associations remain surprisingly underexplored. In this review we outline recent comparative studies investigating how non-human mammals naturally combine information encoded in different sensory modalities during communication...
2016: Multisensory Research
Ophelia Deroy, Charles Spence
The renewed interest that has emerged around the topic of crossmodal correspondences in recent years has demonstrated that crossmodal matchings and mappings exist between the majority of sensory dimensions, and across all combinations of sensory modalities. This renewed interest also offers a rapidly-growing list of ways in which correspondences affect--or interact with--metaphorical understanding, feelings of 'knowing', behavioral tasks, learning, mental imagery, and perceptual experiences. Here we highlight why, more generally, crossmodal correspondences matter to theories of multisensory interactions...
2016: Multisensory Research
Cesare V Parise
Crossmodal correspondences refer to the systematic associations often found across seemingly unrelated sensory features from different sensory modalities. Such phenomena constitute a universal trait of multisensory perception even in non-human species, and seem to result, at least in part, from the adaptation of sensory systems to natural scene statistics. Despite recent developments in the study of crossmodal correspondences, there are still a number of standing questions about their definition, their origins, their plasticity, and their underlying computational mechanisms...
2016: Multisensory Research
Cesare V Parise, Charles Spence, Ophelia Deroy
No abstract text is available yet for this article.
2016: Multisensory Research
Luzia Grabherr, Gianluca Macauda, Bigna Lenggenhager
Although the discovery and understanding of the function of the vestibular system date back only to the 19th century, strategies that involve vestibular stimulation were used long before to calm, soothe and even cure people. While such stimulation was classically achieved with various motion devices, like Cox's chair or Hallaran's swing, the development of caloric and galvanic vestibular stimulation has opened up new possibilities in the 20th century. With the increasing knowledge and recognition of vestibular contributions to various perceptual, motor, cognitive, and emotional processes, vestibular stimulation has been suggested as a powerful and non-invasive treatment for a range of psychiatric, neurological and neurodevelopmental conditions...
2015: Multisensory Research
Kathrine Jáuregui Renaud
Patients with an acquired sensory dysfunction may experience symptoms of detachment from self or from the environment, which are related primarily to nonspecific symptoms of common mental disorders and secondarily, to the specific sensory dysfunction. This is consistent with the proposal that sensory dysfunction could provoke distress and a discrepancy between the multi-sensory frame given by experience and the actual perception. Both vestibular stimuli and vestibular dysfunction can underlie unreal experiences...
2015: Multisensory Research
Mariia Kaliuzhna, Dominique Vibert, Petr Grivaz, Olaf Blanke
Out-of-body experiences (OBEs) are illusory perceptions of one's body from an elevated disembodied perspective. Recent theories postulate a double disintegration process in the personal (visual, proprioceptive and tactile disintegration) and extrapersonal (visual and vestibular disintegration) space as the basis of OBEs. Here we describe a case which corroborates and extends this hypothesis. The patient suffered from peripheral vestibular damage and presented with OBEs and lucid dreams. Analysis of the patient's behaviour revealed a failure of visuo-vestibular integration and abnormal sensitivity to visuo-tactile conflicts that have previously been shown to experimentally induce out-of-body illusions (in healthy subjects)...
2015: Multisensory Research
Gabriella Bottini, Martina Gandola
Caloric vestibular stimulation (CVS) is a simple physiological manipulation that has been used for a long time in different clinical fields due to its rapid and relevant effects on behaviour. One of the most debated issues in this research field concerns the degree of specificity of such stimulation, namely whether the effects of CVS can be, and to what extent are, independent of the mere influence of non-specific factors such as general arousal, ocular movements or attentional shift towards the stimulated side...
2015: Multisensory Research
Adria E N Hoover, Laurence R Harris
People are more sensitive at detecting asynchrony between a self-generated movement and visual feedback concerning that movement when the movement is viewed from a first-person perspective. We call this the 'self-advantage' and interpret it as an objective measure of self. Here we ask if disruption of the vestibular system in healthy individuals affects the self-advantage. Participants performed finger movements while viewing their hand in a first-person ('self') or third-person ('other') perspective and indicated which of two periods (one with minimum delay and the other with an added delay of 33-264 ms) was delayed...
2015: Multisensory Research
Elisa Raffaella Ferrè, Patrick Haggard
No unimodal vestibular cortex has been identified in the human brain. Rather, vestibular inputs are strongly integrated with signals from other sensory modalities, such as vision, touch and proprioception. This convergence could reflect an important mechanism for maintaining a perception of the body, including individual body parts, relative to the rest of the environment. Neuroimaging, electrophysiological and psychophysical studies showed evidence for multisensory interactions between vestibular and somatosensory signals...
2015: Multisensory Research
Christophe Lopez
The role of the vestibular system in posture and eye movement control has been extensively described. By contrast, how vestibular signals contribute to bodily perceptions is a more recent research area in the field of cognitive neuroscience. In the present review article, I will summarize recent findings showing that vestibular signals play a crucial role in making sense of the body. First, data will be presented showing that vestibular signals contribute to bodily perceptions ranging from low-level bodily perceptions, such as touch, pain, and the processing of the body's metric properties, to higher level bodily perceptions, such as the sense of owning a body, the sense of being located within this body (embodiment), and the anchoring of the visuo-spatial perspective to this body...
2015: Multisensory Research
Barry M Seemungal
Vestibular cognition can be divided into two main functions--a primary vestibular sensation of self-motion and a derived sensation of spatial orientation. Although the vestibular system requires calibration from other senses for optimal functioning, both vestibular spatial and vestibular motion perception are typically employed when navigating without vision. A recent important finding is the cerebellar mediation of the uncoupling of reflex (i.e., the vestibular-ocular reflex) from vestibular motion perception (Perceptuo-Reflex Uncoupling)...
2015: Multisensory Research
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