Functional organization of posterior parietal cortex circuitry based on inferred information flow

Kang, Jung Uk; Mooshagian, Eric; Snyder, Lawrence H.

doi:10.1016/j.celrep.2024.114028

Cited by 2 publications

(1 citation statement)

References 102 publications

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“…Previous work on the neural control of eye-hand coordination has elucidated that both movement systems are controlled by shared early sensory and visuomotor processing areas (Battaglia-Mayer et al, 2003;Crawford et al, 2004;Dean et al, 2012;Hwang et al, 2014;Vesia & Crawford, 2012). More recently, the idea that the oculomotor and limb systems use the same task-specific sensory information, but operate in parallel to attain task goals has been brought forward (Kang et al, 2024). Our results support the idea of a parallel functional organisation of eye-hand coordination stem that relies on shared sensory information but may serve separate behavioural goals (Fig.…”

Section: Neural Mechanisms Underlying Rapid Visuomotor Responsesmentioning

confidence: 99%

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

Fooken,

Balalaie,

Park

et al. 2024

Preprint

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Humans can quickly generate eye and hand responses to unpredictable changes in the environment. Here, we investigated eye-hand coordination in a rapid interception task where human participants used a virtual paddle to intercept a moving target. The target moved vertically down a computer screen and could suddenly ‘jump’ to the left or right. In high-certainty blocks, the target always jumped, and in low-certainty blocks, the target only jumped in a portion of trials. Further, we manipulated response urgency by varying the time of target jumps, with early jumps requiring less urgent and late jumps requiring more urgent responses. Our results highlighted differential effects of certainty and urgency on eye-hand coordination. Participants initiated both eye and hand responses earlier for high-certainty compared to low-certainty blocks. Hand reaction times decreased and response vigor increased with increasing urgency levels. However, eye reaction times were lowest for medium-urgency levels and eye vigor was unaffected by urgency. Across all trials, we found a weak positive correlation between eye and hand responses. Taken together, these results suggest that the limb and oculomotor systems use similar early sensorimotor processing; however, rapid responses are modulated differentially to attain system-specific sensorimotor goals.

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Section: Neural Mechanisms Underlying Rapid Visuomotor Responsesmentioning

confidence: 99%

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

Fooken,

Balalaie,

Park

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

Fooken,

Balalaie,

Park

et al. 2024

Journal of Vision

View full text Add to dashboard Cite

When catching a falling ball or avoiding a collision with traffic, humans can quickly generate eye and limb responses to unpredictable changes in their environment. Mechanisms of limb and oculomotor control when responding to sudden changes in the environment have mostly been investigated independently. Here, we investigated eye–hand coordination in a rapid interception task where human participants used a virtual paddle to intercept a moving target. The target moved vertically down a computer screen and could suddenly jump to the left or right. In high-certainty blocks, the target always jumped; in low-certainty blocks, the target only jumped in a portion of the trials. Further, we manipulated response urgency by varying the time of target jumps, with early jumps requiring less urgent responses and late jumps requiring more urgent responses. Our results highlight differential effects of certainty and urgency on eye–hand coordination. Participants initiated both eye and hand responses earlier for high-certainty compared with low-certainty blocks. Hand reaction times decreased and response vigor increased with increasing urgency levels. However, eye reaction times were lowest for medium-urgency levels and eye vigor was unaffected by urgency. Across all trials, we found a weak positive correlation between eye and hand responses. Taken together, these results suggest that the limb and oculomotor systems use similar early sensorimotor processing; however, rapid responses are modulated differentially to attain system-specific sensorimotor goals.

show abstract

Functional organization of posterior parietal cortex circuitry based on inferred information flow

Cited by 2 publications

References 102 publications

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

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