• Literature from cognitive psychology
    Artificial Intelligence 19 (3): 251-255. 1982.
  • Comment: "Truth Conditions and Procedural Semantics"
    In Philip P. Hanson (ed.), Information, Language and Cognition, University of British Columbia Press. pp. 101-111. 1990.
  •  5
    Visual indexes in spatial vision and imagery
    In Richard D. Wright (ed.), Visual Attention, Oxford University Press. pp. 231. 1998.
  • Roundtable discussion
    with Nicholas Asher, Lee R. Brooks, Fred Dretske, Jerry Fodor, David Israel, John Perry, and Brian Cantwell Smith
    In Philip P. Hanson (ed.), Information, Language and Cognition, University of British Columbia Press. pp. 198--216. 1990.
  •  95
    ��In four experiments we address the question whether several visual objects can be selected voluntarily (exogenously) and then tracked in a Multiple Object Tracking paradigm and, if so, whether the selection involves a different process. Experiment 1 showed that items can indeed be selected based on their labels. Experiment 2 showed that to select the complement set to a set that is automatically (exogenously) selected — e.g. to select all objects not flashed — observers require additional time …Read more
  •  53
    The chapters in this book have evolved from talks originally presented at The First International Workshop on Human and Machine Cognition.
  •  90
    Establishment holds that thc psychological mechanism of inference is the ment psychological thcorizing. Moreover, given this conciliatory reading, transformation of mental representations, it follows that perception is in.
  •  39
    6. Seeing With the Mind’s Eye 1: The Puzzle of Mental Imagery .................................................6-1 6.1 What is the puzzle about mental imagery?..............................................................................6-1 6.2 Content, form and substance of representations ......................................................................6-6 6.3 What is responsible for the pattern of results obtained in imagery studies?.................................6-8..
  •  67
    This systematic investigation of computation and mental phenomena by a noted psychologist and computer scientist argues that cognition is a form of computation, that the semantic contents of mental states are encoded in the same general way as computer representations are encoded. It is a rich and sustained investigation of the assumptions underlying the directions cognitive science research is taking. 1 The Explanatory Vocabulary of Cognition 2 The Explanatory Role of Representations 3 The Rele…Read more
  • This study investigates a new experimental paradigm called the Modified Traveling Salesman Problem. This task requires subjects to visit once and only once n invisible targets in a 2D display, using a virtual vehicle controlled by the subject. Subjects can only see the directions of the targets from the current location of the vehicle, displayed by a set of oriented segments that can be viewed inside a circular window surrounding the vehicle. Two conditions were compared. In the “allocentric” co…Read more
  •  53
    I recently discovered that work I was doing in the laboratory and in theoretical writings was implicitly taking a position on a set of questions that philosophers had been worrying about for much of the past 30 or more years. My clandestine involvement in philosophical issues began when a computer science colleague and I were trying to build a model of geometrical reasoning that would draw a diagram and notice things in the diagram as it drew it (Pylyshyn, Elcock, Marmor, & Sander, 1978). One pr…Read more
  •  179
    The Robot's Dilemma (edited book)
    Ablex. 1987.
  •  17
    1. Background: Representation in language and vision ................................................ 1 2. Some parallels between the study of vision and language......................................... 3..
  •  47
    We present three studies examining whether multiple-object tracking (MOT) benefits from the active inhibition of nontargets, as proposed in (Pylyshyn, 2004). Using a probedot technique, the first study showed poorer probe detection on nontargets than on either the targets being tracked or in the empty space between objects. The second study used a matching nontracking task to control for possible masking of probes, independent of target tracking. The third study examined how localized the inhibi…Read more
  •  5
    In Multiple Object Tracking (MOT), an observer is able to track 4 – 5 objects in a group of otherwise indistinguishable objects that move independently and unpredictably about a display. According to the Visual Indexing Theory (Pylyshyn, 1989), successful tracking requires that target objects be indexed while they are distinct -- before tracking begins. In the typical MOT task, the target objects are briefly flashed resulting in the automatic assignment of indexes. The question arises whether in…Read more
  •  35
    In three experiments, subjects attempted to track multiple items as they moved independently and unpredictably about a display. Performance was not impaired when the items were briefly (but completely) occluded at various times during their motion, suggesting that occlusion is taken into account when computing enduring perceptual objecthood. Unimpaired performance required the presence of accretion and deletion cues along fixed contours at the occluding boundaries. Performance was impaired when …Read more
  •  14
    This is indeed an auspicious time for Cognitive Science. I stand here before you this evening as the first Chair to give a presidential address to this austere body, to place on record before you what you are to accept as the Society's official view on the new science of the mind.
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    Mental imagery: In search of a theory
    Behavioral and Brain Sciences 25 (2): 157-182. 2002.
    It is generally accepted that there is something special about reasoning by using mental images. The question of how it is special, however, has never been satisfactorily spelled out, despite more than thirty years of research in the post-behaviorist tradition. This article considers some of the general motivation for the assumption that entertaining mental images involves inspecting a picture-like object. It sets out a distinction between phenomena attributable to the nature of mind to what is …Read more
  •  70
    Imagery
    In R. L. Gregory (ed.), Oxford Companion to the Mind, Oxford University Press. 2004.
    In Gregory, Richard. Oxford Companion to the Mind (Second Edition, 2006) Oxford University Press