The persistence of object file representations. Noles, N. S, Scholl, B. J, & Mitroff, S. R Percept Psychophys, 67(2):324-34, 2005. abstract bibtex Coherent visual experience of dynamic scenes requires not only that the visual system segment scenes into component objects but that these object representations persist, so that an object can be identified as the same object from an earlier time. Object files (OFs) are visual representations thought to mediate such abilities: OFs lie between lower level sensory processing and higher level recognition, and they track salient objects over time and motion. OFs have traditionally been studied via object-specific preview benefits (OSPBs), in which discriminations of an object's features are speeded when an earlier preview of those features occurred on the same object, as opposed to on a different object, beyond general displaywide priming. Despite its popularity, many fundamental aspects of the OF framework remain unexplored. For example, although OFs are thought to be involved primarily in online visual processing, we do not know how long such representations persist; previous studies found OSPBs for up to 1500 msec but did not test for longer durations. We explored this issue using a modified object reviewing paradigm and found that robust OSPBs persist for more than five times longer than has previously been tested-for at least 8 sec, and possibly for much longer. Object files may be the "glue" that makes visual experience coherent not just in online moment-by-moment processing, but on the scale of seconds that characterizes our everyday perceptual experiences. These findings also bear on research in infant cognition, where OFs are thought to explain infants' abilities to track and enumerate small sets of objects over longer durations.
@Article{Noles2005,
author = {Nicholaus S Noles and Brian J Scholl and Stephen R Mitroff},
journal = {Percept Psychophys},
title = {The persistence of object file representations.},
year = {2005},
number = {2},
pages = {324-34},
volume = {67},
abstract = {Coherent visual experience of dynamic scenes requires not only that
the visual system segment scenes into component objects but that
these object representations persist, so that an object can be identified
as the same object from an earlier time. Object files (OFs) are visual
representations thought to mediate such abilities: OFs lie between
lower level sensory processing and higher level recognition, and
they track salient objects over time and motion. OFs have traditionally
been studied via object-specific preview benefits (OSPBs), in which
discriminations of an object's features are speeded when an earlier
preview of those features occurred on the same object, as opposed
to on a different object, beyond general displaywide priming. Despite
its popularity, many fundamental aspects of the OF framework remain
unexplored. For example, although OFs are thought to be involved
primarily in online visual processing, we do not know how long such
representations persist; previous studies found OSPBs for up to 1500
msec but did not test for longer durations. We explored this issue
using a modified object reviewing paradigm and found that robust
OSPBs persist for more than five times longer than has previously
been tested-for at least 8 sec, and possibly for much longer. Object
files may be the "glue" that makes visual experience coherent not
just in online moment-by-moment processing, but on the scale of seconds
that characterizes our everyday perceptual experiences. These findings
also bear on research in infant cognition, where OFs are thought
to explain infants' abilities to track and enumerate small sets of
objects over longer durations.},
keywords = {Extramural, Humans, Motion Perception, N.I.H., Non-P.H.S., P.H.S., Research Support, Rotation, U.S. Gov't, Visual Perception, 15973783},
}
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Object files (OFs) are visual representations thought to mediate such abilities: OFs lie between lower level sensory processing and higher level recognition, and they track salient objects over time and motion. OFs have traditionally been studied via object-specific preview benefits (OSPBs), in which discriminations of an object's features are speeded when an earlier preview of those features occurred on the same object, as opposed to on a different object, beyond general displaywide priming. Despite its popularity, many fundamental aspects of the OF framework remain unexplored. For example, although OFs are thought to be involved primarily in online visual processing, we do not know how long such representations persist; previous studies found OSPBs for up to 1500 msec but did not test for longer durations. We explored this issue using a modified object reviewing paradigm and found that robust OSPBs persist for more than five times longer than has previously been tested-for at least 8 sec, and possibly for much longer. Object files may be the \"glue\" that makes visual experience coherent not just in online moment-by-moment processing, but on the scale of seconds that characterizes our everyday perceptual experiences. 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Object files (OFs) are visual\n\trepresentations thought to mediate such abilities: OFs lie between\n\tlower level sensory processing and higher level recognition, and\n\tthey track salient objects over time and motion. OFs have traditionally\n\tbeen studied via object-specific preview benefits (OSPBs), in which\n\tdiscriminations of an object's features are speeded when an earlier\n\tpreview of those features occurred on the same object, as opposed\n\tto on a different object, beyond general displaywide priming. Despite\n\tits popularity, many fundamental aspects of the OF framework remain\n\tunexplored. For example, although OFs are thought to be involved\n\tprimarily in online visual processing, we do not know how long such\n\trepresentations persist; previous studies found OSPBs for up to 1500\n\tmsec but did not test for longer durations. We explored this issue\n\tusing a modified object reviewing paradigm and found that robust\n\tOSPBs persist for more than five times longer than has previously\n\tbeen tested-for at least 8 sec, and possibly for much longer. Object\n\tfiles may be the \"glue\" that makes visual experience coherent not\n\tjust in online moment-by-moment processing, but on the scale of seconds\n\tthat characterizes our everyday perceptual experiences. These findings\n\talso bear on research in infant cognition, where OFs are thought\n\tto explain infants' abilities to track and enumerate small sets of\n\tobjects over longer durations.},\n keywords = {Extramural, Humans, Motion Perception, N.I.H., Non-P.H.S., P.H.S., Research Support, Rotation, U.S. Gov't, Visual Perception, 15973783},\n}\n\n","author_short":["Noles, N. S","Scholl, B. J","Mitroff, S. 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