In immersive virtual environments (IVEs), users can control their viewpoint by moving tracked head and walking through the real world. Usually, movements in world are mapped one-to-one to camera motions. With redirection techniques, is manipulated applying gains user motion so that moves differently than Thus, walk large-scale IVEs while physically remaining a reasonably small workspace. psychophysical experiments with two-alternative forced-choice task, we have quantified how much humans...

The advent of inexpensive consumer virtual reality equipment enables many more researchers to study perception with naturally moving observers. One such system, the HTC Vive, offers a large field-of-view, high-resolution head mounted display together room-scale tracking system for less than thousand U.S. dollars. If position and orientation this is sufficient accuracy precision, it could be suitable much research that currently done far expensive systems. Here we present quantitative test...

A vivid perception of the moving form a human figure can be obtained from few light points on joints body. This is known as biological motion perception. It commonly believed that rests image signals. Curiously, however, some patients with lesions to processing areas dorsal stream are severely impaired in but easily perceive motion. Here we describe stimulus based limited lifetime technique tests absence local We find subjects spontaneously recognize displays without Their performance very...

Biological motion perception is the compelling ability of visual system to perceive complex human movements effortlessly and within a fraction second. Recent neuroimaging neurophysiological studies have revealed that biological activates widespread network brain areas. The superior temporal sulcus has crucial role this network. roles other areas are less clear. We present computational model based on neurally plausible assumptions elucidate contributions form signals computations in...

In human-human interactions, corepresenting a partner's actions is crucial to successfully adjust and coordinate with others. Current research suggests that action corepresentation restricted interactions between human agents facilitating social interaction conspecifics. this study, we investigated whether corepresentation, as measured by the Simon effect (SSE), present when share task real humanoid robot. Further, tested believed humanness of robot's functional principle modulates extent...

Redirected walking allows users to walk through large-scale immersive virtual environments (IVEs) while physically remaining in a reasonably small workspace by intentionally injecting scene motion into the IVE. In constant stimuli experiment with two-alternative-forced-choice task we have quantified how much humans can unknowingly be redirected on paths which are different from they actually walk. 18 subjects been tested four experiments: (E1a) discrimination between and physical rotation,...

Over the past 25 years, visual processing has been discussed in context of dual stream hypothesis consisting a ventral ("what") and dorsal ("where") information pathway. Patients with brain damage pathway typically present signs agnosia, inability to identify discriminate objects by exploration, but show normal perception motion perception. A dissociation between biological non-biological suggested: might be impaired when "non-biological" is intact vice versa. The impact object recognition...

Immersive computer-generated environments (aka virtual reality, VR ) are limited by the physical space around them, e.g., enabling natural walking in is only possible perceptually-inspired locomotion techniques such as redirected (RDW). We introduce a completely new approach to imperceptible position and orientation redirection that takes advantage of fact even healthy humans functionally blind for circa ten percent time under normal circumstances due motor processes preventing light from...

A number of virtual reality head-mounted displays (HMDs) with integrated eye trackers have recently become commercially available. If their tracking latency is low and reliable enough for gaze-contingent rendering, this may open up many interesting opportunities researchers. We measured latencies the Fove-0, Varjo VR-1, High Tech Computer Corporation (HTC) Vive Pro Eye using simultaneous electrooculography measurements. determined time from occurrence an position change to its availability...

How does the brain process visual information about self-motion? In monkey cortex, analysis of motion is performed by successive areas specialized in different aspects processing. Whereas neurons middle temporal (MT) area are direction-selective for local motion, medial superior (MST) respond to patterns. A neural network model attempts link these properties psychophysics human heading detection from optic flow. It proposes that populations represent specific directions heading. We...

Interest in the processing of optic flow has increased recently both neurophysiological and psychophysical communities. We have designed a neural network model visual motion pathway higher mammals that detects direction heading from flow. The is implementation subspace algorithm introduced by Heeger Jepson (1990). tested simulations are closely related to experiments show our results consistent with recent data fields. reproduces some key properties human ego-motion perception. At same time,...

A bstract : The present study was aimed at investigating the sensitivity to linear vestibular stimulation of neurons in medial superior temporal area (MST) macaque monkey. Two monkeys were moved on a parallel swing while single‐unit activity recorded. About one‐half cells (28/51) responded dark either forward motion ( n = 10), or backward 11), both 7). Twenty responding darkness also tested for their responses optic flow simulating and self‐motion. Forty‐five percent (9/20) them preferred...

Eye movements affect object localization and recognition. Around saccade onset, briefly flashed stimuli appear compressed towards the target, receptive fields dynamically change position, recognition of objects near target is improved. These effects have been attributed to different mechanisms. We provide a unifying account peri-saccadic perception explaining all three phenomena by quantitative computational approach simulating cortical cell responses on population level. Contrary common...

Car drivers can employ a number of strategies to negotiate curves. The tangent point strategy proposes the use angle between inner lane markings and car's current heading direction, which is proportional required steering angle. gaze-sampling fixate points on future path measure curvature optic flow vectors inform whether they over- or under-steer. Nine subjects drove repeatedly four loops motorway junction for street parameters were available, while eye-movements, relations car recorded. In...

Virtual reality strives to provide a user with an experience of simulated world that feels as natural the real world. Yet, induce this feeling, sometimes it becomes necessary for technical reasons deviate from one-to-one correspondence between and virtual world, reorient or reposition user's viewpoint. Ideally, users should not notice change viewpoint avoid breaks in perceptual continuity. Saccades, fast eye movements we make order switch gaze one object another, produce visual discontinuity...

Real walking is the most natural way to locomote in virtual reality (VR), but a confined physical space limits its applicability. Redirected (RDW) collection of techniques solve this problem. One these aims imperceptibly rotate user's view scene order steer her along path whilst giving impression straight line large space. Measurement perceptual thresholds for detection such modified curvature gain have indicated radius that still larger than room sizes. Since brain an adaptive system and...

Biological motion perception is referred to as the ability recognize a moving human figure from no more than few point lights. Such point-light stimuli contain limited form information about shape of body and local image signals points. The contributions vivid displays are subject controversy in discussion. While some studies claim that critical, others emphasize role global cues. Here, we present template-matching approach investigate analysis. We used method derives biological exclusively...