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Highlights from the Scientific Community
The latest features related to 3D active perception.
November 19, 2009: The effect of crowding on vision and visually guided grasping is investigated to measure the spatial resolution of visuomotor behavior. ** P. F. Bulakowski, R. B. Post and D. Whitney, (2009) Visuomotor crowding: the resolution of grasping in cluttered scenes; Frontiers in Behavioral Neuroscience, 9(6), 1-7
November 11, 2009: A simple principle of maximization of total neural response can lead the brain or any other behaving system to develop sensorimotor feedback loops ** Y. Wang and B. Shi (2009) Autonomous Development of Vergence Control Driven by Disparity Energy Neuron Populations; Neural Computation, 22, 1-22
October 21, 2009: A simple model simulates the space-time transformations that occur in the receptive fields of visual neurons at the time of saccades and predicts many complex perceptual phenomena. ** P. Binda, G. M. Cicchini, D. C. Burr and C. Morrone (2009) Spatiotemporal distortion of visual perception at the time of saccades J. Neurosci. 29(42), 13147-13157
August 12, 2009: How is perisaccadic compression linked to the problem of recovering accurate spatial representation from distorted retinotopic maps. ** A. Richard, J. Churan, D. E. Guitton and C. C. Pack (2009) The geometry of perisaccadic visual perception J. Neurosci. 29(32), 10160-10170
August 07, 2009: Visual Cognition: Volume 17 Issue 6 & 7. Special Issue on Eye Guidance in Natural Scenes. Avaliable online.
July 13, 2009: In contrast with a simple common representation for reach planning the authors argue that the presence of noisy sensory transformations make it advantageous to represent movement plans simultaneously in multiple reference frames. ** L. M. M. McGuire and P. N. Sabes (2009) Sensory transformations and the use of multiple reference frames for reach planning. Nature Neurosci. 12(8), 1056-1063
July 02, 2009: Perisaccadic shift might be caused by neural representations of eye position or space that are plastic and that arise from non-motor, extraretinal mechanisms. This suggests a perceptual system that continuously calibrates itself in response to changes in oculomotor and muscle systems to reconstruct a stable percept of the world. ** A. C. Kis, V. W. A. Singh, and M. Niemeier (2009) Short- and long-term plasticity of eye position information: Examining perceptual, attentional, and motor influences on perisaccadic perception; J. Vision. 9(6), 1-21
June 18, 2009: Optimal control methods and neural systems modeling are used to understand the functional principles of eye-head gaze shifts. A minimum effort rule is demonstrated to be an important design principle of eye-head motor coordination. ** A. A. Kardamakis and A. K. Moschovakis, (2009) Optimal Control of Gaze Shifts; J. Neurosci. 29, 7723-7730
June 17, 2009: Research paper on the interplay between the parietal cortex and early visual cortical areas in achieveing a stable spatial representation related to selective attention and eye movements. ** Berman R., and Colby C, (2009) Attention and active vision; Vision Research 43, 1233-1248
June 11, 2009: An ANN model for 3D visuomotor transformation for reaching that reflects several known neurophysiological findings, such as gain-field modulations and position-dependent shifting of RFs. ** Blohm G., Keith G.P., and Crawford J.D. (2009) Decoding the cortical transformations for visually reaching in 3D space; Cerebral Cortex 19, 1372-1393
June 10, 2009: Research paper on the role of cortical and subcortical pathways associated to the social gaze following. ** S.V., Shepherd, J.T., Klein, R.O., Deaner, M.L., Platt, (2009) Mirroring of attention by neurons in macaque parietal cortex; PNAS 106(23), 9489-9494
May 18, 2009: Poster on the role of 3D visual information, as the surface orientation, on the planning of eye movements. ** D.A., Wismeijer, R., van Ee, C.J., Erkelens, M., Wexler, (2009) 3D cue combination in spontaneous eye movements; VSS 09
May 08, 2009: Research paper on the role of the area V6A and its implication in directing the arm toward different spatial locations during reach-to-grasp tasks. * Fattori, P., Breveglieri, R., Marzocchi, N., Filippini, D., R., Bosco, A., Galletti, C., (2009) Hand Orientation during Reach-to-Grasp Movements Modulates Neuronal Activity in the Medial Posterior Parietal Area V6A; J. Neurosci 29(6), 1928-1936
May 04, 2009: Research paper on the role of the parietal-occipital junction, the intraparietal sulcus and the putative human homologue of V6A on pointing tasks in the sagittal or frontoparallel planes. ** Danckert J., Goldberg L., Broderick C. (2009) Damage to superior parietal cortex impairs pointing in the sagittal plane; Exp. Brain Res. 195, 183-191
April 10, 2009: Research paper on the influence of vertical disparities on the perception of 3D depth. An explicit encoding of two-dimensional disparity for supporting is compared against a much more economical encoding that uses purely horizontal-disparity sensors. ** Serrano-Pedraza I., Read J.C.A. (2009) Stereo vision requires an explicit encoding of vertical disparity; J. Vision 9(4), 1-13
April 04, 2009: Research paper on the representation of space within reach of the arm in the parietal cortex in the macaque and in humans. ** Gallivan J.P., Cavina-Pratesi C., and Culham J.C. (2009) Is That within Reach? fMRI Reveals That the Human Superior Parieto-Occipital Cortex Encodes Objects Reachable by the Hand; J. Neurosci. 29, 4381-4391
February 23, 2009: Research paper on the variation of reliability of binocular information with eccentricity, as a cue for grasping in 3D. ** Greenwald H.S., and Knill D.C. (2009) Cue integration outside central fixation: A study of grasping in depth; J.of Vision 9, 1-16.
December 9, 2008:
Research paper on depth cues influencing 3D visual exploration. ** Wexler M., and Ouarti N. (2008)
Depth Affects Where We look.
Curr. Biol. 18, 1872-1876.
December 8, 2008:
Research
paper on joint disparity and motion cortical coding.
*Neri P., and Levi D.M. (2008) Evidence
for Joint Encoding of Motion and Disparity in Human Visual Perception.
J.
Neurophysiol. 100, 3117-3133.
October 7, 2008: Research
paper on spatial awareness.
*Wolbers T., Hegarty M., Buechel C., and Loomis J.M. (2008) Spatial
updating: how the brain keeps track of changing object locations during
observer motion. Nature Neuroscience
11, 1223 - 1230.
October 2, 2008: Research
paper on the experimental analysis of the differences between
convergence and divergence responses to visual stimuli.
*Lee Y.Y, Chen T., and Alvarez T.L. (2008) Quantitative
Assessment of Divergence Eye Movements. J. of Vision 8,
1-13.
April 8, 2008: New
Research paper on neural coding mechanisms to retain distance
information about a target for a reaching movement across vergence eye
movements.
**Van Pelt S., and Medenport W.P. (2008) Updating
Target Distance Across Eye Movements in Depth.
J. Neurophysiol. 99, 2281-2290.
In particular, the authors refer to the work of Kaiser and Lappe (2004)
on the compression of space around the saccade target, suggesting to
explore whether "similar spatial distortions occur across vergence eye
movements, and if so, whether they have a similar time course".
March 18, 2008: Research
paper on oculomotor feedback alterations of the receptive field
structure.
**Hamker F.H., Zirnsak M., Calow D., and Lappe M. (2008) The
Peri-Saccadic Perception of Objects and Space. PLoS Computational
Biology 4(2): e31 doi:10.1371/journal.pcbi.0040031
March 13, 2008: Research
paper on remapping of visual processing.
**Melcher D. (2008))
Predictive Remapping of Visual Features Precedes Saccadic Eye
Movements. Nature Neuroscience
10, 903-907.
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 WEBMASTER: Agostino Gibaldi (UG)
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