1,871 research outputs found
Aerospace medicine and biology: A continuing bibliography with indexes (supplement 341)
This bibliography lists 133 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during September 1990. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance
Exploring relationships between touch perception and surface physical properties
This paper reports a study of materials for confectionery packaging. The aim was to explore the touch perceptions of textures and identify their relationships with the surfaces' physical properties. Thirty-seven tactile textures were tested including 22 cardboards, nine flexible materials and six laminate boards. Semantic differential questionnaires were administered to assess responses to touching the textures against six word pairs: warm-cold, slippery-sticky, smooth,-rough, hard-soft, bumpy-flat, and wet-dry. Four physical measurements were conducted to characterize the surfaces' roughness, compliance, friction, and the rate of cooling of an artificial finger when touching the surface. Correlation and regression analyses were carried out to identify the relationships between the people's responses and the physical measurements. Results show that touch perception is often associated with more than one physical property, and the strength and form of the combined contribution can be represented by a regression model. © 2009 Chen, Shao, Barnes, Childs, & Henson
Aerospace medicine and biology: A continuing bibliography with indexes (supplement 324)
This bibliography lists 200 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during May, 1989. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance
Aerospace medicine and biology: A continuing bibliography with indexes, supplement 125
This special bibliography lists 323 reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1974
Aerospace Medicine and Biology: A continuing bibliography with indexes
This bibliography lists 253 reports, articles, and other documents introduced into the NASA scientific and technical information system in October 1975
Aerospace Medicine and Biology. A continuing bibliography (Supplement 226)
This bibliography lists 129 reports, articles, and other documents introduced into the NASA scientific and technical information system in November 1981
The effect of thermal stimuli on the emotional perception of images
Thermal stimulation is a feedback channel that has the potential to influence the emotional response of people to media such as images. While previous work has demonstrated that thermal stimuli might have an effect on the emotional perception of images, little is understood about the exact emotional responses different thermal properties and presentation techniques can elicit towards images. This paper presents two user studies that investigate the effect thermal stimuli parameters (e.g. intensity) and timing of thermal stimuli presentation have on the emotional perception of images. We found that thermal stimulation increased valence and arousal in images with low valence and neutral to low arousal. Thermal augmentation of images also reduced valence and arousal in high valence and arousal images. We discovered that depending on when thermal augmentation is presented, it can either be used to create anticipation or enhance the inherent emotion an image is capable of evoking
Multi-Moji: Combining Thermal, Vibrotactile and Visual Stimuli to Expand the Affective Range of Feedback
This paper explores the combination of multiple concurrent
modalities for conveying emotional information in HCI:
temperature, vibration and abstract visual displays. Each modality
has been studied individually, but can only convey a
limited range of emotions within two-dimensional valencearousal
space. This paper is the first to systematically combine
multiple modalities to expand the available affective
range. Three studies were conducted: Study 1 measured the
emotionality of vibrotactile feedback by itself; Study 2 measured
the perceived emotional content of three bimodal combinations:
vibrotactile + thermal, vibrotactile + visual and
visual + thermal. Study 3 then combined all three modalities.
Results show that combining modalities increases the available
range of emotional states, particularly in the problematic
top-right and bottom-left quadrants of the dimensional
model. We also provide a novel lookup resource for designers
to identify stimuli to convey a range of emotions
Tactile Modulation of the Sensory and Cortical Responses Elicited by Focal Cooling in Humans and Mice
Distinct sensory receptors transduce thermal and mechanical energies, but we have
unified, coherent thermotactile experiences of the objects we touch. These
experiences must emerge from the interaction of thermal and tactile signals within the
nervous system. How do thermal and mechanical signals modify each other as they
interact along the pathway from skin to conscious experience? In this thesis, we study
how mechanical touch modulates cooling responses by combining psychophysics in
humans and neural recordings in rodents. For this, we developed a novel stimulator
to deliver focal, temperature-controlled cooling without touch. First, we used this
method to study in humans the sensitivity to focal cooling with and without touch. We
found that touch reduces the sensitivity to near-threshold cooling, which is perhaps
analogous to the well-established ‘gating’ of pain by touch. Second, we studied the
perceived intensity of cooling with and without touch. We found that tactile input
enhances the perceived intensity of cooling. Third, we measured the responses of the
mouse primary somatosensory cortex to cooling and mechanical stimuli using
imaging and electrophysiological methods. We found multisensory stimuli elicited
non-linear cortical responses at both the population and cellular level. Altogether, in
this thesis, we show perceptual and cortical responses to non-tactile cooling for the
first time. Based on our observations, we propose a new model to explain the
interactions between cooling and mechanical signals in the nervous system. This
thesis advances our understanding of how touch modulates cold sensations during
thermotactile stimulation
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