The impoverished auditory information provided by cochlear implant (CI) results in impaired auditory perception and production in mnay CI users. Speech perception in CI users has been well studied and fully documented. In contrast, much less has been studied for speech production in CI users. Tactile stimulation has been shown to enhance CI performance. In the present study, we aim to discover ...

Humans can often estimate tactile properties of objects from vision alone. For example, during online shopping, we can often infer material properties of clothing from images and judge how the material would feel against our skin. What visual information is important for tactile perception? Previous studies in material perception have focused on measuring surface appearance, such as gloss and r...

Human imaging studies have reported activations associated with tactile motion perception in visual motion area V5/hMT+, primary somatosensory cortex (SI) and posterior parietal cortex (PPC; Brodmann areas 7/40). However, such studies cannot establish whether these areas are causally involved in tactile motion perception. We delivered double-pulse transcranial magnetic stimulation (TMS) while m...

Many studies have found that visual cortical areas are active during tactile perception. Here we used positron emission tomographic (PET) scanning in normally sighted humans to show that extrastriate cortical regions are recruited in a task-specific manner during perceptual processing of tactile stimuli varying in two dimensions. Mental rotation of tactile Forms activated a focus around the ant...

The objective of this study is to empirically compare the accuracy of velocity perception generated by visual apparent motion with that generated by tactile apparent motion. From the results, the subjects were able to perceive velocity information through tactile stimulus presentation more accurately than through visual stimulus presentation. When tactile stimuli were presented, the effect of a...

This paper describes two aspects of the application of tactile information presentation in the cockpit. The first half of the paper discusses why the tactile channel might be used instead of, or in addition to, the more common visual and auditory channels. It lists several categories of information used in cockpits and explores their appropriateness for tactile stimulation. The second half of t...

This article reports a variety of sensory and perceptual consequences of eliminating, via a rigid fingertip sheath, the spatially distributed fingertip force information that is normally available during tactile and haptic sensing. Sensory measures included tactile spatial acuity, tactile force, and vibrotactile thresholds. Suprathreshold tasks included perception of roughness, perception of 2-...