ライフサイエンスコーパス: optic flow

1 ir all responded best to the same pattern of optic flow.

2 f the effects was substantially stronger for optic flow.

3 ion creates only front-to-back (progressive) optic flow.

4 in the sylvian fissure, is not responsive to optic flow.

5 ffects of head rotation on the processing of optic flow.

6 nce of rotation is mediated by instantaneous optic flow.

7 tion relies on the time-varying evolution of optic flow.

8 lift to maintain a set-point in the ventral optic flow.

9 motion platform or simulated visually using optic flow.

10 unding effects of rotatory head movements on optic flow.

11 h smooth-pursuit eye movements often distort optic flow.

12 ut steer better with object motion than with optic flow.

13 ategy as well as a reduced perception of the optic flow.

14 e the variety of motion directions in radial optic flow.

15 they travel, whereas flying insects monitor optic flow.

16 ance because the close tunnel walls increase optic flow.

17 hin STPa are contributing to the analysis of optic flow.

18 irect role in the perception of heading from optic flow.

19 experience potentially confusing patterns of optic flow.

20 16], is that locomotive heading is guided by optic flow.

21 es a pattern of motion on the retina, called optic flow.

22 e neurons are well suited to the analysis of optic flow.

23 from distant landmarks and without proximal optic flow.

24 ound that the double mutants still perceived optic flow.

25 s the animal to stabilize its position using optic flow.

26 ons in the VPM are particularly sensitive to optic flow.

27 xhibit strong spatial biases in how they use optic flow.

28 dy motions will translate into high-velocity optic flow.

29 , while lateral self-motion was simulated by optic flow.

30 according to viewing geometry inferred from optic flow.

31 le timescales involved in the integration of optic flow.

32 referring motion along directions or axes of optic flow.

33 r monitoring self-motion through the induced optic flow.

34 several higher visual areas known to encode optic flow.

35 ponsive to inertial motion in the absence of optic flow.

36 tation and inhibition resulting from complex optic flow.

37 e visual motion and spatial location cues in optic flow.

38 tic acceleration, the temporal derivative of optic flow.

39 neurons are selective for heading defined by optic flow.

40 is pooled in neurons sensitive to wide-field optic flow.

41 spatial and temporal characteristics of the optic flow [1-5].

42 bees perform optomotor course correction to optic flow, a response that is dependent on the spatial

43 en assumed that the OMR, by reducing average optic flow across the retina, serves to stabilize positi

44 otion, the predominant anterior to posterior optic flow activates retinal ganglion cells in a stereot

45 inantly follows the VR upon manipulations of optic flow against locomotion.

46 rios and tasks, using geometrical models and optic flow algorithms.

47 vestibular (inertial) self-motion signals to optic flow almost completely eliminates the errors in pe

48 as typically weaker than that obtained using optic flow alone, and heading preferences under congruen

49 STd neurons to heading directions defined by optic flow alone, inertial motion alone, and congruent c

50 Here we determine whether optic flow also drives visuo-locomotor adaptation in vis

51 onstraints on visual perception might impair optic flow analysis and contribute to spatial disorienta

52 When both optic flow and congruent object were presented together,

53 se neurons reach out to assemble patterns of optic flow and encode them reliably.

54 ual cues derived from the radial patterns of optic flow and from the relative motion of objects withi

55 tuning of macaque V6 neurons in response to optic flow and inertial motion stimuli.

56 nslation (i.e., heading) in response to both optic flow and inertial motion.

57 Optic flow and object motion processing impairments migh

58 We used optic flow and object motion stimuli to simulate aspects

59 isease patients show poorer performance with optic flow and object motion than all other groups and d

60 ssing deficits that limit the ability to use optic flow and object motion to perceive and control sel

61 estimation based-on self-movement cues from optic flow and object motion.

62 s is achieved by using information in global optic flow and other sensory arrays to estimate and dedu

63 , animals integrate visual speed gauged from optic flow and run speed gauged from proprioceptive and

64 recipient nuclei involved in the analysis of optic flow and the generation of the optokinetic respons

65 Image sequences were analysed using Sparse Optic Flow and the resultant frame-to-frame motion param

66 Here, we explore optic flow and vestibular convergence in the visual post

67 e brain are multisensory, responding to both optic flow and vestibular cues to self-motion.

68 cause neurons in this area are tuned to both optic flow and vestibular signals.

69 We found robust optic flow and vestibular tuning in more than one-third

70 eading discrimination task involving visual (optic flow) and vestibular (translational motion) cues.

71 Convergence of visual motion information (optic flow) and vestibular signals is important for self

72 emerges from encoding intricate patterns of optic flow, and the translation of these visual signals

73 ifferent viewing geometries are simulated by optic flow, and these biases occur without training or f

74 Optic flow appears to dominate steering control in richl

75 le versus optic-flow-based ensemble, in RSC, optic flow appears to override locomotion signals cohere

76 Such patterns of optic flow are a potential source of information about t

77 tion patterns that emerge in spatio-temporal optic flow are essential for guiding self-motion along c

78 of a lone target, but increasingly relied on optic flow as it was added to the display.

79 otion including planar, circular, and radial optic flow, as assessed using adaptation paradigms.

80 ey respond selectively to global patterns of optic flow, as well as translational motion in darkness.

81 n primary visual cortex which respond to the optic flow associated with forward motion, while other c

82 equivalent locomotion-based ensemble versus optic-flow-based ensemble, in RSC, optic flow appears to

83 at polarized-light-based compass neurons and optic-flow-based speed-encoding neurons converge in the

84 -a celestial-cue-based visual compass and an optic-flow-based visual odometer-but the underlying neur

85 LM displayed an overall preference for fast optic flow because neurons were biased to lower spatial

86 n increases, however, this simple pattern of optic flow becomes increasingly complex.

87 ate altitude by maintaining a fixed value of optic flow beneath them, as suggested by a recent model

88 ation in a virtual environment that provided optic flow but lacked explicit position cues.

89 ly biased monkeys' heading percepts based on optic flow, but did not significantly impact vestibular

90 are organized to support robust decoding of optic flow by downstream circuits is unclear.

91 stimulation revealed that D. cerebrum follow optic flow by swimming continuously, punctuated with sha

92 hat apple flies can orient in the absence of optic flow by using only directional airflow cues, and r

93 k has shown that dynamic perspective cues in optic flow can be used in computations that require esti

94 Here we show that radial optic flow can elicit appropriately directed (horizontal

95 This suggests that optic flow can influence the firing of boundary vector c

96 iscount the global patterns of image motion (optic flow) caused by self-motion.

97 However, corresponding front-to-back optic flow causes antennae to move backward, as a linear

98 sing a custom-built 1.7-cm path length fiber-optic flow cell.

99 Modern optics flow cells based on total internal reflection are

100 ction patterns provide further evidence that optic flow circuits differ among bird species with disti

101 Thus, locomotion-gated optic flow, combined with the presence of contextual cue

102 t in the sparse environment, indicating that optic flow contributes over and above target drift alone

103 xternally generated, but not self-generated, optic flow contributes to future history-dependent stabi

104 detect a moving object within the pattern of optic flow created by its own motion through the station

105 body rotations alone or in conjunction with optic flow, creating either purely vestibular or visuo-v

106 eption in primates depends heavily on visual optic-flow cues.

107 nkeys use both vestibular and visual motion (optic flow) cues to discriminate their direction of self

108 ing eight repetitions of each combination of optic flow density (low, medium, high), turn radius (35,

109 Many animals navigate using optic flow, detecting rotational image velocity differen

110 ndicate that the monkey's performance in the optic flow detection task depended on the location of th

111 The discovery of translational optic flow detectors in the central complex of a bee has

112 runs parallel to the fly's local motion and optic-flow detectors.

113 rons responded maximally to single-component optic flow displays but was also significantly activated

114 th translation, rotation, radial, and spiral optic flow displays designed to mimic the types of motio

115 in the absence of form cues using random dot optic flow displays.

116 tter leads us to suggest a new algorithm for optic flow driven odometry.

117 ilateral visual motion, mirroring horizontal optic flow during contraversive turning.

118 her adding vestibular self-motion signals to optic flow enhances the accuracy of heading judgments in

119 Radial optic flow evoked N200 responses comparable with those o

120 clear whether idiothetic cues alone, such as optic flow, exert sufficient influence on the cognitive

121 at move independently in the world alter the optic flow field and can induce errors in perceiving the

122 moving independently in the world alters the optic flow field and may bias heading perception if the

123 )motion is accompanied by object motion, the optic flow field includes a component due to self-motion

124 stimulus that conveys a single instantaneous optic flow field, even though the stimulus is presented

125 ppress responses to transient changes to the optic flow field.

126 sion is estimated from the divergence of the optic-flow field (the two-dimensional field of local tra

127 e neurons responds selectively to a specific optic flow-field representing the spatial distribution o

128 The extraction of optic flow fields by visual systems is crucial for cours

129 The speed of visual motion in optic flow fields can provide important cues about self-

130 over time to convey the evolving sequence of optic flow fields corresponding to a particular heading.

131 ated self-movement from left or right offset optic flow fields of several sizes (25 degrees, 40 degre

132 lly so as to align with specific translatory optic flow fields, creating a neural ensemble tuned for

133 ssible function in enhancing selectivity for optic flow fields.

134 have an important role in the extraction of optic flow for the monitoring and guidance of self-motio

135 Optic flow from a virtual floor does not slow drift dyna

136 ersive virtual environment by displacing the optic flow from the direction of walking, violating the

137 = 15) steered along a winding path with rich optic flow: gaze patterns were consistent with tracking

138 that heading tuning of VIP neurons based on optic flow generally shifted with eye position, indicati

139 ys, and do not represent the complexities of optic flow generated during actual flight.

140 ed on DS neurons dedicated to processing the optic flow generated during navigation.

141 tant the rate of front-to-back image motion (optic flow) generated by the surface as they reduce alti

142 on-selective cells follow the projections of optic flow, generated by the movements animals make as t

143 All visual animals experience optic flow-global visual motion across the retina, which

144 er deflections is highest in the presence of optic flow going in the opposite direction.

145 ies implement filtering driven by background optic flow, I tested their frequency-dependent steering

146 ht hovering in hummingbirds to determine how optic flow--image movement across the retina--is used to

147 ing (the direction of self-translation) from optic flow in a manner that is tolerant to rotational vi

148 Consideration of optic flow in the context of real-world locomotion there

149 fore suggests a re-evaluation of the role of optic flow in the control of action during natural behav

150 RPD patients and HC perceived optic flow in the left hemifield as faster than in the r

151 ment of visual features on the ground plane (optic flow) in the ventral visual field, this resulted i

152 hypothesis that visual heading signals (from optic flow) in VIP might also be transformed into a body

153 ,)(6) which stabilizes the body by following optic flow induced by displacements in currents.(7) Whil

154 rons to read the patterns of visual motion - optic flow - induced by the their movements.

155 crimination task in which varying background optic flow induces robust perceptual biases.

156 d systematic control of place fields by pure optic flow information in freely moving rats.

157 sensory convergence involved in transforming optic flow information into a (head-centered) reference

158 Global processing of optic flow information is shown to play a fundamental ro

159 rea (MST) is well suited for the analysis of optic flow information.

160 g clues about how the multiple timescales of optic flow integration are implemented.

161 ccurate estimation of heading direction from optic flow is a crucial aspect of human spatial percepti

162 show that a small, frontal spatial window of optic flow is enough to fully facilitate or suppress TSD

163 and movement.(1) The midbrain circuitry for optic flow is highly conserved in vertebrates,(2-6) and

164 This suggests that instantaneous optic flow is insufficient for heading perception in the

165 Rotational optic flow is monitored using temporal frequency analyse

166 Human heading perception based on optic flow is not only accurate, it is also remarkably r

167 In birds, optic flow is processed by a retinal-recipient nucleus i

168 striking property of heading perception from optic flow is that discrimination is most precise when s

169 nd while their visual processing of rotatory optic flow is understood in exquisite detail, how they p

170 e interpretation of studies that assume that optic flow is, and should be, represented as an instanta

171 Sensitivity to speed gradients in optic flow might contribute to neuronal mechanisms for s

172 ingly, we show that TSDNs are facilitated by optic flow moving counterdirectional to the target, if t

173 mer's disease patients showed smaller radial optic flow N200s than older adult subjects, and these we

174 ctive odorant increases the influence of yaw-optic flow on steering behavior in flight, which enhance

175 icant directional selectivity in response to optic flow, one-half show tuning to vestibular stimuli,

176 minent retinorecipient structures related to optic flow operations and visuomotor control.

177 e backward, as a linear function of relative optic flow, opposite the airspeed response.

178 e as a beacon, showing that they do not need optic flow or a visual horizon to maneuver.

179 omputations, such as estimating heading from optic flow or judging depth from motion parallax.

180 show similar pointing accuracy using either optic flow or object motion, but steer better with objec

181 when heading judgments were based on either optic flow or vestibular cues, although the magnitude of

182 either computations of self-motion based on optic flow, or computations of absolute position based o

183 quence of retinal activity driven by natural optic flow organizes retinotopy by regulating axon arbor

184 Areas in posterior IPS preferred radial optic flow over planar motion, whereas areas in anterior

185 kingdom, sensory information in the form of optic flow over the visual field is used to estimate sel

186 e VS cells are unreliable indicators of such optic flow parameters in the context of their noisy, tex

187 Optic flow parsing is a proposed visual mechanism for co

188 n egomotion-incompatible (EI) 3 x 3 array of optic flow patches; or c) moved randomly (RM).

189 n of spontaneous retinal waves resembles the optic flow pattern generated by forward self-motion.

190 ditionally, neither the speed profile of the optic flow pattern nor the response method (mouse vs. ke

191 nts increases gradually over time, while the optic-flow pattern is random.

192 ies and globally discounts (i.e., subtracts) optic flow patterns across the visual scene-a process ca

193 ecting moving objects because self-generated optic flow patterns confound image motion.

194 urons in monkey area MSTd respond to complex optic flow patterns resulting from self-motion.

195 nal, and VIP neurons respond well to complex optic flow patterns similar to those found during self-m

196 more accurate heading judgements when using optic flow patterns than when using simulated movement p

197 n identified in humans by passive viewing of optic flow patterns that simulate egomotion and object m

198 omotor behaviors and coordinate the specific optic flow patterns that they induce.

199 tion of egocentric coordinates and of radial optic flow patterns, both of which are mediated by the p

200 ual pursuit, saccadic eye movements optimize optic flow patterns, rather than track targets.

201 ctional, and typically selective for complex optic flow patterns.

202 oup showed a selective impairment in outward optic flow perception [F(2,64) = 6.3, P = 0.003] relativ

203 Combining N200 amplitudes with optic flow perceptual thresholds and contrast sensitivit

204 Although optic flow plays an essential role in speed determinatio

205 In our study, we recorded optic flow preferences from PCs in IXcd, marked recordin

206 ters for stimulus features, including light, optic flow, prey, and objects on a collision course.

207 Here we demonstrate that optic flow processing has an important role in the detec

208 we propose that this could be combined with optic flow processing to enable three-dimensional naviga

209 t hierarchically similar to MSTd in terms of optic flow processing.

210 r processing, but distal to MSTd in terms of optic flow processing.

211 STd in self-motion perception extends beyond optic flow processing.

212 ported the idea that motor-related inputs to optic flow-processing cells represent internal predictio

213 quisite detail, how they process translatory optic flow remains a mystery.

214 antly faster than in MSTd, whereas timing of optic flow responses did not differ significantly among

215 Overall, optic flow responses in VPS were weaker than those in MS

216 equire a sophisticated system to exploit the optic flow resulting from moving images of the environme

217 ch, with their complex receptive fields, the optic flow resulting from rotation around different body

218 bellar PCs respond to particular patterns of optic flow resulting from self-motion in three-dimension

219 in the ventral uvula respond to patterns of optic flow resulting from self-motion through the enviro

220 The vast majority of research on optic flow (retinal motion arising because of observer m

221 one global pattern of retinal image motion (optic flow), rotation another.

222 itial heading direction are dominated by the optic flow's global radial pattern cue.

223 Spatial biases in optic-flow sampling are likely pervasive because they ar

224 l frequency analysers, whereas translational optic flow seems to be monitored in terms of angular spe

225 -brain, light-sheet calcium imaging, we find optic-flow-selective neurons that exhibit signatures of

226 Optic flow selectivity in VIP was weaker than in MSTd bu

227 ties of butterfly DNs, such that wide-field, optic flow-sensitive DNs involved in stabilization refle

228 ts overlap with the inputs of well described optic flow-sensitive lobula plate tangential cells (LPTC

229 Optic flow-sensitive neurons in primate brain area MSTd

230 e cortical area that combines vestibular and optic flow signals is the ventral intraparietal area (VI

231 cells and hippocampal place cells, yaw plane optic flow signals likely influence representations in t

232 nts derived from ambulation, vestibular, and optic-flow signals.

233 environment by primarily leveraging sensory (optic flow) signals, or by more heavily relying on acqui

234 izing that visual motion evoked responses to optic flow simulating observer self-movement would be li

235 we removed the normal gradient of speeds in optic flow (slower speeds in the center, faster speeds i

236 al, behavioral, and physiological studies on optic flow specializations in hummingbirds.

237 gocentric midline and not with perception of optic flow speed asymmetries, and in RPD it was also ass

238 Thus, optic flow stimulation entrained PDs, albeit at drift sp

239 PIVC neurons did not respond to optic flow stimulation, and vestibular responses were si

240 ons to three-dimensional (3D) vestibular and optic flow stimulation.

241 d head positions while rhesus monkeys viewed optic flow stimuli depicting various headings.

242 Presentation of optic flow stimuli modulates the amplitude of concurrent

243 timuli preceded horizontal motion and radial optic flow stimuli to separate motion N200s from pattern

244 ed by changes in the mean speed of motion in optic flow stimuli, with response profiles resembling si

245 that responded to either radial or circular optic flow stimuli.

246 caques during the presentation of continuous optic flow stimuli.

247 lf-movement [F(2,194) = 40.5, P < 0.001] and optic flow stimulus size had little effect on heading di

248 In this work, we use a naturalistic optic flow stimulus to explore the responses of neurons

249 en simultaneously presented speeds within an optic flow stimulus.

250 stimulus paradigm, in which we stabilize the optic-flow stimulus on the retina during pursuit.

251 guide walking to a stationary goal: (1) the optic-flow strategy, in which one aligns the direction o

252 in pursuit gain arising from differences in optic flow strength in the stimulus reconcile much of th

253 conditions: none (eyes closed), natural, and optic flow supplied by a virtual-reality headset.

254 adult subjects show better performance with optic flow than object cues for pointing (P < 0.001), bu

255 elocity can also be inferred from rotational optic flow that accompanies smooth eye movements, but th

256 field and occlude regions of the background optic flow that are most informative about heading perce

257 tion produces strong symmetric translational optic flow that can mask these differences, yet the brai

258 inal images by inducing a pattern of retinal optic flow that cannot be compensated globally by a sing

259 aining other moving objects, which introduce optic flow that is inconsistent with observer self-motio

260 g linear paths without eye movements creates optic flow that radiates from the direction of travel (h

261 The visual motion - or optic flow - that results from an observer's own movemen

262 ltiple objects (an artificial recreation of 'optic flow' that would usually occur during head rotatio

263 'Optic flow' - the motion of texture across the field - g

264 work presented here investigates the role of optic flow, the apparent change of patterns of light on

265 d obstacles in the environment is encoded by optic flow, the movement of images on the eye.

266 t was proposed that we steer to a goal using optic flow, the pattern of motion at the eye that specif

267 was assessed using perceptual thresholds for optic flow, the visual motion seen during observer self-

268 strides, rather than linear acceleration or optic flow: the number of steps they took depended on bo

269 ) and humans (female/male) relied heavily on optic flow, thereby demonstrating a critical role for se

270 e gain of the optomotor response to sideslip optic flow, they concomitantly increase the gain of the

271 ors are correlated with selectively elevated optic flow thresholds in Alzheimer's disease patients.

272 Optic flow thus plays a central role in both online cont

273 For instance, animals measure optic flow to estimate and control their own rotation.

274 of specialized neurons that integrate local optic flow to estimate body rotation during locomotion.

275 environment to test how the human brain uses optic flow to monitor changing object coordinates.

276 ded new insights into the way Drosophila use optic flow to pick out a close target to approach.

277 pid responses to heading deviations and uses optic flow to redirect self-movement toward the intended

278 Insects depend upon optic flow to supply much of their information about the

279 ects can use this information, often termed "optic flow", to accurately estimate their direction of s

280 erated by traveling straight-the translatory optic flow-to successfully navigate obstacles: near obje

281 ots which either: a) followed a time-varying optic flow trajectory in a single, egomotion-compatible

282 e medial superior temporal area (MSTd) where optic flow tuning typically dominates or the visual post

283 stibular signals, in contrast to MSTd, where optic flow tuning typically dominates.

284 Subjects were presented with either visual (optic-flow), vestibular (motion-platform), or combined (

285 ationship between Purkinje cell responses to optic flow visual stimuli and ZII stripes.

286 heading tuning of MSTd neurons by presenting optic flow (visual condition), inertial motion (vestibul

287 rm (vestibular condition) or simulated using optic flow (visual condition).

288 The preferred rotation axis in response to optic flow was generally the opposite of that during phy

289 We found that tuning for optic flow was predominantly eye-centered, whereas tunin

290 fter labyrinthectomy, whereas selectivity to optic flow was unaffected.

291 r MST is involved in extracting heading from optic flow, we perturbed its activity in monkeys trained

292 ponds differentially to egomotion-compatible optic flow when compared to: (a) coherent but egomotion-

293 ems that extract spatially biased samples of optic flow when estimating self-motion.

294 irection of self-motion (i.e., heading) from optic flow when moving through a stationary environment.

295 significant 3D heading tuning in response to optic flow, whereas 64% were selective for heading defin

296 time-history in the neural representation of optic flow, which may modulate its structure.

297 haviors involving fast-moving stimuli (e.g., optic flow), while area PM helps guide behaviors involvi

298 In separate trials, we combined optic flow with non-congruent object motion, simulating

299 tion of locomotion or "heading" specified by optic flow with the visual goal; and (2) the egocentric-

300 the direction of rotation in the absence of optic flow, with more neurons preferring roll than pitch