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    Retentional models have a distinct advantage over Extensi... — Carmelics
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    Home/Perception
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    Retentional models have a distinct advantage over Extensional models in accommodating temporal illusions such as the flash-lag effect and the phi-phenomenon.

    Consciousness & MindPerception
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    Reasons For

    1 perspective
    Reason for
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    • 1.Temporal illusions involve cases where a stimulus occurring later than time t affects the character of what is perceived as occurring at t itself.
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    • 2.Retentional models allow what is perceived as occurring at t to vary across different specious presents, so a spot of light can be perceived as stationary in specious present S1 and as moving in a later specious present S2.
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    • 3.Extensional models represent each stimulus only once, meaning conflicting perceptual data about the same moment t yields contradictory experiences (the spot being perceived as both stationary and in motion simultaneously).
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    Reasons Against

    2 perspectives
    Reason against 1 of 2
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    • 1.Extensional models can incorporate post-dictive revision mechanisms, whereby later neural signals retroactively update the content of earlier perceptual representations without contradiction.
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    • 2.Psychophysical evidence from Eagleman and Sejnowski (2000) supports post-diction as the actual neural mechanism underlying the flash-lag effect, making extensional post-dictive accounts empirically competitive with retentional ones.
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    • 3.If the extensional model revises rather than simultaneously holds conflicting contents, P3's claim of forced simultaneous contradiction is false, and the alleged advantage of retentional models dissolves.
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    Reason against 2 of 2
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    • 1.The phi-phenomenon and flash-lag effect can be explained by predictive interpolation operating over discrete extensional snapshots, as argued by Dennett in 'Consciousness Explained' through the Multiple Drafts model.
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    • 2.Retentional models, by embedding temporal flow within the structure of each conscious moment, generate their own explanatory burden: they must account for why retentional content of a moving stimulus coheres rather than producing smearing or doubling artifacts.
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    • 3.The purported advantage of retentional models in handling temporal illusions thus trades one explanatory problem for another, undermining the claim of distinct advantage.
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    Topics

    PerceptionConsciousness & Mind

    Related

    Being perceived as both stationary and in motion simultaneously is impossible an...Extensional models can incorporate post-dictive revision mechanisms, whereby lat...Extensional models represent each stimulus only once, meaning conflicting percep...If the extensional model revises rather than simultaneously holds conflicting co...
    +6 moreShow less
    Psychophysical evidence from Eagleman and Sejnowski (2000) supports post-diction...Retentional models allow what is perceived as occurring at t to vary across diff...Retentional models, by embedding temporal flow within the structure of each cons...Temporal illusions involve cases where a stimulus occurring later than time t af...The phi-phenomenon and flash-lag effect can be explained by predictive interpola...The purported advantage of retentional models in handling temporal illusions thu...

    Similar

    Extensional models can accommodate temporal illusions without yielding...85%Retentional models allow what is perceived as occurring at t to vary a...77%Temporal illusions involve cases where a stimulus occurring later than...76%The Discrete Block model of the specious present fails to account for ...73%

    Source

    AI-extracted1/3 agreementValid
    SEP: consciousness-temporal
    View source passageHide passage
    Coming from a very different direction, Grush has argued (2005b, 2006, 2007, 2016) that Retentional models have a distinct advantage over Extensional models when it comes to accommodating certain ‘temporal illusions’. The relevant category of cases are those where a stimuli occurring later than a time t affects the character of what is perceived as occurring at t itself; the so-called flash-lag effect and the phi-phenomenon fall into this category. These instances of (apparent) retro-active caus
    Extraction notes

    Validity: Extracted via Max plan + API grounding/validity checks

    Details

    Type
    claim
    Perspectives
    3 (1 for, 2 against)
    Edits
    1 edit