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    Archived pages: 251 . Archive date: 2013-07.

  • Title: Claudia in CB 2011
    Descriptive info: Claudia in CB 2011.. Friday, 05 August 2011 14:21.. PisaVisionLab.. New Research in Current Biology.. Claudia.. , who's latest paper just got accepted for publication in Current Biology.. Brief periods of monocular deprivation disrupt ocular balance in human adult visual cortex.. Neuroplasticity is a fundamental property of the developing mammalian visual system, with residual potential in adult human cortex.. A short period of abnormal visual experience (such as occlusion of one eye) before closure of the critical period has dramatic and permanent neural consequences, reshaping visual cortical organization in favour of the non-deprived eye..  ...   a surprisingly high degree of neural plasticity, with important perceptual consequences.. We report that 150 minutes of monocular deprivation strongly affects the dynamics of binocular rivalry, unexpectedly causing the deprived eye to prevail in conscious perception twice as much as the non-deprived eye, with significant effects for up to 90 minutes.. Apparent contrast of stimuli presented to the deprived eye was also increased, suggesting that the deprivation acts by up-regulation of cortical gain-control mechanisms of the deprived eye.. The results suggest that adult visual cortex retains a good deal of plasticity that could be important..

    Original link path: /index.php/component/content/article/58-research/97-cbc-in-cb-2011
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  • Title: Eckart in CB 2011
    Descriptive info: Eckart in CB 2011.. , who's latest paper just got accepted for publication in current biology.. Spatiotopic Visual Maps Revealed by Saccadic Adaptation in Humans.. Saccadic adaptation is a powerful experimental paradigm to probe the mechanisms of eye movement control and spatial vision, in which saccadic amplitudes change in response to false visual feedback.. The adaptation occurs primarily in the motor system, but there is also evidence for visual adaptation, depending on the size and the permanence of the postsaccadic error.. Here we confirm that adaptation has a strong visual component and show that  ...   task designed to maximize visual adaptation and to dissociate the visual and motor corrections.. When the memorized saccadic target was in the same position (in external space) as that used in the adaptation training, saccade targeting was strongly influenced by adaptation (even if not matched in retinal or cranial position), but when in the same retinal or cranial but different external spatial position, targeting was unaffected by adaptation, demonstrating unequivocal spatiotopic selectivity.. These results point to the existence of a spatiotopic neural representation for eye movement control that adapts in response to saccade error signals..

    Original link path: /index.php/component/content/article/58-research/106-eck-in-cb-2011
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  • Title: John Ross interviewed in CB
    Descriptive info: John Ross interviewed in CB.. Interview:.. John Ross interviewed in Current Biology.. John Ross, David Burr's mentor and collaborator, has been interviewed by.. Current Biology.. Read on to hear about his expoits, his path through research and some sound advice about approaching science.. : PDF)..

    Original link path: /index.php/component/content/article/3-media/103-johnrosscb
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  • Title: In the News: Referee Decisions - TGT Italia 7
    Descriptive info: In the News: Referee Decisions - TGT Italia 7.. Referee's and offside (as seen on TGT Italia 7).. Roberto Arrighi, a researcher in Pisa Vision Lab, was interviewed recently on television for TGT Italia 7 about the role that perceptual limitations and visual system strategies have when referee's determine whether a player is offside or not.. (News report is in Italian).. Youtube link.. : Italian)..

    Original link path: /index.php/component/content/article/3-media/99-perception-referee-tgt
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  • Title: Pisa Vision Lab
    Descriptive info: New Research in Journal of Neuroscience.. Roberto.. , who's latest paper just got accepted for publication in Journal of Neuroscience.. Optimal Encoding of Interval Timing in Expert Percussionists.. Marco Cicchini.. , Luca Cecchetti, Marco Giusti and.. We measured temporal reproduction in human subjects with various levels of musical expertise: expert drummers, string musicians, and non-musicians.. While duration reproduction of the non-percussionists showed a characteristic central tendency or regression to the mean, drummers responded veridically.. Furthermore, when the stimuli were auditory tones rather than flashes, all subjects responded veridically.. The behavior of all three groups in both modalities is well explained by a Bayesian model that seeks to minimize reproduction errors by incorporating a central tendency prior, a probability density function centered at the mean duration of the sample.. We measured separately temporal precision thresholds with a bisection task; thresholds were twice as low in drummers as in the other two groups.. These estimates of temporal precision, together with an adaptable Bayesian prior, predict well the reproduction results and the central tendency strategy under all conditions and for all subject groups.. These results highlight the efficiency and flexibility of sensorimotor mechanisms estimating temporal duration.. David Burr and Concetta Morrone award the 2011 Kurt-Koffka Award.. The Kurt-Koffka award honors scientists who have advanced the fields of perception or developmental psychology to an extraordinary extent.. The award is in remembrance  ...   see the world delayed".. The.. visual world we perceive seems stable - despite all the changes and movements we see.. Researchers (including Concetta Morrone) have proposed that this stability is the result of simultaneous modifications of both space and time neural mechanisms which are anchored in external space.. Everytime we move our eyes, there could be a reorganization of the connections between neurons to ensure stability - and this results in a distortion between real and perceived time.. To accommodate this change, the brain must reset both the inner and the 'real' clock at the end of each ocular movement.. (Article is in Italian).. In the News:.. Space, Time and number in the brain - A strong connection at the visual perception level: the Pisa Vision Lab research.. Space, time and numbers are correlated in our sense perception in a much higher measure than is usually thought.. The inter-University project known as STANIB (Space, Time and Numbers in the Brain) created by the Pisa Vision Lab, is a 5 year project which, in a decisively innovative way, investigates our way of perceiving space and time by considering them together and not as two independent and separate dimensions.. The strong connection, which resounds in the tradition of physics both ancient (Aristotle) and contemporary (Einsteinian concept of space-time) is new for studies on perception.. : English).. Page 2 of 3..

    Original link path: /index.php?start=9
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  • Title: Pisa Vision Lab
    Descriptive info: "If the referee makes a mistake when calling an offside? It is a perception problem".. The Pisa Vision Lab researchers demonstrate that a referee might make a mistake no just he is being paid to, but that the mistake could be due to confusion and an increased number of visual stimuli.. Page 3 of 3..

    Original link path: /index.php?start=18
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  • Title: Forgot your Password?
    Descriptive info: Forgot your Password?.. Please enter the e-mail address for your account.. A verification token will be sent to you.. Once you have received the token, you will be able to choose a new password for your account.. E-mail Address:.. Submit..

    Original link path: /index.php/component/user/reset
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  • Title: Forgot your Username?
    Descriptive info: Forgot your Username?.. Please enter the e-mail address associated with your User account.. Your username will be e-mailed to the e-mail address on file..

    Original link path: /index.php/component/user/remind
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  • Title: Registration
    Descriptive info: Registration.. Fields marked with an asterisk (*) are required.. Name: *.. Username: *.. E-mail: *.. Password: *.. Verify Password: *.. Please enter the following characters you see into the textbox below.. Letters not clear ?.. Click to renew captcha.. Register.. New..

    Original link path: /index.php/component/user/register
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  • Title: Cortex-Plasticity
    Descriptive info: Cortex-Plasticity.. Thursday, 13 June 2013 15:12..

    Original link path: /index.php/component/content/article/3-media/146-cortex-plasticity
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  • Title: Stability Review - Perception Lecture
    Descriptive info: Stability Review - Perception Lecture.. Tuesday, 29 January 2013 08:24..

    Original link path: /index.php/component/content/article/58-research/129-stabreview
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  • Archived pages: 251