Visually guided pointing, the Müller-Lyer illusion, and the functional interpretation of the dorsal-ventral split: Conclusions from 33 independent studies

Bruno, Nicola; Bernardis, P. de; Gentilucci, Maurizio

doi:10.1016/j.neubiorev.2007.08.006

Cited by 99 publications

(78 citation statements)

References 59 publications

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“…Numerous studies have demonstrated a dissociation between conscious visual perception processed by a ventral cortical stream and visually guided actions mediated by a dorsal cortical stream (Goodale and Milner, 1992), with the latter thought to be immune to optical illusions when memory is not involved (Bruno et al, 2008). So, even in light of the potential for inversion illusions in parabolic flight, our observations of timing reversals in an interception task are surprising.…”

Section: Discussionmentioning

confidence: 70%

When Up Is Down in 0g: How Gravity Sensing Affects the Timing of Interceptive Actions

Senot¹,

Zago²,

Séac’h³

et al. 2012

J. Neurosci.

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Humans are known to regulate the timing of interceptive actions by modeling, in a simplified way, Newtonian mechanics. Specifically, when intercepting an approaching ball, humans trigger their movements a bit earlier when the target arrives from above than from below. This bias occurs regardless of the ball's true kinetics, and thus appears to reflect an a priori expectation that a downward moving object will accelerate. We postulate that gravito-inertial information is used to tune visuomotor responses to match the target's most likely acceleration. Here we used the peculiar conditions of parabolic flight-where gravity's effects change every 20 s-to test this hypothesis. We found a striking reversal in the timing of interceptive responses performed in weightlessness compared with trials performed on ground, indicating a role of gravity sensing in the tuning of this response. Parallels between these observations and the properties of otolith receptors suggest that vestibular signals themselves might plausibly provide the critical input. Thus, in addition to its acknowledged importance for postural control, gaze stabilization, and spatial navigation, we propose that detecting the direction of gravity's pull plays a role in coordinating quick reactions intended to intercept a fast-moving visual target.

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Section: Discussionmentioning

confidence: 70%

When Up Is Down in 0g: How Gravity Sensing Affects the Timing of Interceptive Actions

Senot¹,

Zago²,

Séac’h³

et al. 2012

J. Neurosci.

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show abstract

“…Bruno et al (2008) suggested that visual feedback about the target is one of the important factors that determine the eVect of illusions on pointing movements. In the study of Gonzalez et al (2006) the target remained visible during the movement, whereas in this study the target was invisible during that period.…”

Section: Resultsmentioning

confidence: 99%

The Brentano illusion influences goal-directed movements of the left and right hand to the same extent

2008

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Recently, Gonzalez et al. (J Neurophys 95:3496-3501, 2006) reported that movements with the left hand are more susceptible to visual size illusions than are those with the right hand. We hypothesized that this might be because proprioceptive information about the position of the left hand is less precise. If so, the diVerence between the hands should become clearer when vision of the hand is removed so that subjects can only rely on proprioception to locate their hand. We tested whether this was so by letting right-handed subjects make open-loop pointing movements within an illusory context with and without vision of their hand. On average, the illusion inXuenced the left and the right hand to the same extent, irrespective of the visibility of the hand. There were some systematic diVerences between the hands within certain regions of space, but these were not consistent across subjects. We conclude that there is no fundamental diVerence between the hands in susceptibility to the Brentano illusion.

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“…In contrast, the vision for perception system has a more robust memory and retains information over much longer periods of time. Adult research indicates that in occlusion situations, vision for perception replaces vision for movement to guide the ongoing movement especially for occlusion durations longer than 2 s (e.g., Bridgeman, Gemmer, Forsman, & Huemer, 2000;Bruno & Franz, 2009;Bruno, Bernardis, & Gentilucci, 2008;Gentilucci, Chieffi, Daprati, Saetti, & Toni, 1996;Rossetti & Pisella, 2002;Rossetti, 1998;Westwood & Goodale, 2003;Westwood, McEachern, & Roy, 2001).…”

Section: Discussionmentioning

confidence: 99%

Anticipatory reaching of seven- to eleven-month-old infants in occlusion situations

Wermeskerken

Kamp

Velde

et al. 2011

Infant Behavior and Development

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a b s t r a c tThe present study examined 7-to 11-month-old infants' anticipatory and reactive reaching for temporarily occluded objects. Infants were presented with laterally approaching objects that moved at different velocities (10, 20, and 40 cm/s) in different occlusion situations (no-, 20 cm-, and 40 cm-occlusion), resulting in occlusion durations ranging between 0 and 4 s. Results show that except for object velocity and occlusion distance, occlusion duration was a critical constraint for infants' reaching behaviors. We found that the older infants reached more often, but that an increase in occlusion duration resulted in a decline in reaching frequency that was similar across age groups. Anticipatory reaching declined with increasing occlusion duration, but the adverse effects for longer occlusion durations diminished with age. It is concluded that with increasing age infants are able to retain and use information to guide reaching movements over longer periods of non-visibility, providing support for the graded representation hypothesis (Jonsson & von Hofsten, 2003) and the two-visual systems model (Milner & Goodale, 1995).

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Visually guided pointing, the Müller-Lyer illusion, and the functional interpretation of the dorsal-ventral split: Conclusions from 33 independent studies

Cited by 99 publications

References 59 publications

When Up Is Down in 0g: How Gravity Sensing Affects the Timing of Interceptive Actions

When Up Is Down in 0g: How Gravity Sensing Affects the Timing of Interceptive Actions

The Brentano illusion influences goal-directed movements of the left and right hand to the same extent

Anticipatory reaching of seven- to eleven-month-old infants in occlusion situations

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