To investigate whether visual field dependence-independence changed after unilateral vestibular loss, Menière's patients were tested before and after unilateral vestibular neurotomy and compared with controls. Using the rod and frame test, visual vertical perception was tested under four visual contexts (with a frame tilted either clockwise or counterclockwise, with a vertical frame, and withou...

A comparison was made between results obtained through the Titmus Vision Tester and those obtained through more common open field optometric procedures. Specific tests performed with the Titmus Vision Tester included near and distance visual acuities, distance lateral and vertical phorias, color discrimination, and stereo acuity. Results were also obtained using Snellen near and distance charts...

We conducted two experiments (total N = 81) to investigate the basis for the large-scale horizontal-vertical illusion (HVI), which is typically measured as 15%-20% and has previously been linked to the presence of a ground plane. In a preliminary experiment, vertical rods of similar angular extents that were either large (4.5-7.5 m) and far, or small (0.9-1.5 m) and near, were matched to horizo...

Perception of the visual vertical is strongly based on our ability to match visual inflow with vestibular, proprioceptive, tactile, and even visceral information that contributes to maintaining an internal representation of the vertical. An important cortical region implicated in multisensory integration is the right temporoparietal junction (rTPJ), which also is involved in higher order forms ...

Twining plants achieve vertical growth by revolving around supports of different sizes on which they exert a pressure. This observation raises many intriguing questions that are addressed within the framework of elastic filamentary structures by modeling the stem close to the apex as a growing elastic rod. The analysis shows that vertical growth is achieved thanks to discrete contact points and...

Abstract By calculating the kinetic and potential energies, applying Lagrangian mechanics, with Euler-Lagrange equations, we obtained equations that were used to analyze pendulum motion of a mechanical system consisting an arrangement three rigid rods, two them equal mass m length l , which behave like physical pendulums, are joined by means third, rod M L . In latter, there is square block can...

Bipolar cells transmit stimuli via graded changes in membrane potential and neurotransmitter release is modulated by Ca(2+) influx through L-type Ca(2+) channels. The purpose of this study was to determine whether the α1c subunit of L-type voltage-gated Ca(2+) channel (α1c L-type Ca(2+) channel) colocalizes with protein kinase C alpha (PKC-α), which labels rod bipolar cells. Retinal whole mount...

PURPOSE Delayed rod-mediated dark adaptation (DA) is characteristic of early age-related macular degeneration (AMD) and also can be observed in some older adults in normal macular health. We examine cross-sectional associations between rod-mediated DA and risk factors for AMD in older adults in normal macular health. METHODS The sample consisted of adults aged ≥60 years old in normal macular ...

In this paper, the directional characteristics of wind noise emitted by different bionic rods were studied based on a hybrid computational aeroacoustics method. The reduction mechanism surface grooves, pits, and bumps was analyzed, respectively. basic principle is to reduce influence vortex shedding rod changing shape or passive control technology dipole sound source. unsmooth transverse will i...