@misc{AdamBovend'EerdtDoorenetal.2012,
  author    = {Adam, Jos J. and Bovend'Eerdt, Thamar J. H. and Dooren, Fleur E. P. van and Fischer, Martin H. and Pratt, Jay},
  title     = {The closer the better},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {607},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-43296},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-432963},
  pages     = {1533 -- 1538},
  year      = {2012},
  abstract  = {A growing literature has suggested that processing of visual information presented near the hands is facilitated. In this study, we investigated whether the near-hands superiority effect also occurs with the hands moving. In two experiments, participants performed a cyclical bimanual movement task requiring concurrent visual identification of briefly presented letters. For both the static and dynamic hand conditions, the results showed improved letter recognition performance with the hands closer to the stimuli. The finding that the encoding advantage for near-hand stimuli also occurred with the hands moving suggests that the effect is regulated in real time, in accordance with the concept of a bimodal neural system that dynamically updates hand position in external space.},
  language  = {en}
}
@article{AdamBovend'EerdtvanDoorenetal.2012,
  author    = {Adam, Jos J. and Bovend'Eerdt, Thamar J. H. and van Dooren, Fleur E. P. and Fischer, Martin H. and Pratt, Jay},
  title     = {The closer the better hand proximity dynamically affects letter recognition accuracy},
  series = {Attention, perception, \& psychophysics : AP\&P ; a journal of the Psychonomic Society, Inc.},
  volume    = {74},
  journal   = {Attention, perception, \& psychophysics : AP\&P ; a journal of the Psychonomic Society, Inc.},
  number    = {7},
  publisher = {Springer},
  address   = {New York},
  issn      = {1943-3921},
  doi       = {10.3758/s13414-012-0339-3},
  pages     = {1533 -- 1538},
  year      = {2012},
  abstract  = {A growing literature has suggested that processing of visual information presented near the hands is facilitated. In this study, we investigated whether the near-hands superiority effect also occurs with the hands moving. In two experiments, participants performed a cyclical bimanual movement task requiring concurrent visual identification of briefly presented letters. For both the static and dynamic hand conditions, the results showed improved letter recognition performance with the hands closer to the stimuli. The finding that the encoding advantage for near-hand stimuli also occurred with the hands moving suggests that the effect is regulated in real time, in accordance with the concept of a bimodal neural system that dynamically updates hand position in external space.},
  language  = {en}
}
@article{FestmanAdamPrattetal.2013,
  author    = {Festman, Yariv and Adam, Jos J. and Pratt, Jay and Fischer, Martin H.},
  title     = {Both hand position and movement direction modulate visual attention},
  series = {Frontiers in psychology},
  volume    = {4},
  journal   = {Frontiers in psychology},
  number    = {4},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2013.00657},
  pages     = {6},
  year      = {2013},
  abstract  = {The current study explored effects of continuous hand motion on the allocation of visual attention. A concurrent paradigm was used to combine visually concealed continuous hand movements with an attentionally demanding letter discrimination task. The letter probe appeared contingent upon the moving right hand passing through one of six positions. Discrimination responses were then collected via a keyboard press with the static left hand. Both the right hand's position and its movement direction systematically contributed to participants' visual sensitivity. Discrimination performance increased substantially when the right hand was distant from, but moving toward the visual probe location (replicating the far-hand effect, Festrnan et al., 2013). However, this effect disappeared when the probe appeared close to the static left hand, supporting the view that static and dynamic features of both hands combine in modulating pragmatic maps of attention.},
  language  = {en}
}
@article{FestmanAdamPrattetal.2013,
  author    = {Festman, Yariv and Adam, Jos J. and Pratt, Jay and Fischer, Martin H.},
  title     = {Continuous hand movement induces a far-hand bias in attentional priority},
  series = {Attention, perception, \& psychophysics : AP\&P ; a journal of the Psychonomic Society, Inc.},
  volume    = {75},
  journal   = {Attention, perception, \& psychophysics : AP\&P ; a journal of the Psychonomic Society, Inc.},
  number    = {4},
  publisher = {Springer},
  address   = {New York},
  issn      = {1943-3921},
  doi       = {10.3758/s13414-013-0430-4},
  pages     = {644 -- 649},
  year      = {2013},
  abstract  = {Previous research on the interaction between manual action and visual perception has focused on discrete movements or static postures and discovered better performance near the hands (the near-hand effect). However, in everyday behaviors, the hands are usually moving continuously between possible targets. Therefore, the current study explored the effects of continuous hand motion on the allocation of visual attention. Eleven healthy adults performed a visual discrimination task during cyclical concealed hand movements underneath a display. Both the current hand position and its movement direction systematically contributed to participants' visual sensitivity. Discrimination performance increased substantially when the hand was distant from but moving toward the visual probe location (a far-hand effect). Implications of this novel observation are discussed.},
  language  = {en}
}
@misc{KrauseBekkeringPrattetal.2016,
  author    = {Krause, Florian and Bekkering, Harold and Pratt, Jay and Lindemann, Oliver},
  title     = {Interaction between numbers and size during visual search},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {623},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-43544},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435442},
  pages     = {664 -- 677},
  year      = {2016},
  abstract  = {The current study investigates an interaction between numbers and physical size (i.e. size congruity) in visual search. In three experiments, participants had to detect a physically large (or small) target item among physically small (or large) distractors in a search task comprising single-digit numbers. The relative numerical size of the digits was varied, such that the target item was either among the numerically large or small numbers in the search display and the relation between numerical and physical size was either congruent or incongruent. Perceptual differences of the stimuli were controlled by a condition in which participants had to search for a differently coloured target item with the same physical size and by the usage of LCD-style numbers that were matched in visual similarity by shape transformations. The results of all three experiments consistently revealed that detecting a physically large target item is significantly faster when the numerical size of the target item is large as well (congruent), compared to when it is small (incongruent). This novel finding of a size congruity effect in visual search demonstrates an interaction between numerical and physical size in an experimental setting beyond typically used binary comparison tasks, and provides important new evidence for the notion of shared cognitive codes for numbers and sensorimotor magnitudes. Theoretical consequences for recent models on attention, magnitude representation and their interactions are discussed.},
  language  = {en}
}
@article{KrauseBekkeringPrattetal.2017,
  author    = {Krause, Florian and Bekkering, Harold and Pratt, Jay and Lindemann, Oliver},
  title     = {Interaction between numbers and size during visual search},
  series = {Psychological research : an international journal of perception, attention, memory, and action},
  volume    = {81},
  journal   = {Psychological research : an international journal of perception, attention, memory, and action},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {0340-0727},
  doi       = {10.1007/s00426-016-0771-4},
  pages     = {664 -- 677},
  year      = {2017},
  abstract  = {The current study investigates an interaction between numbers and physical size (i.e. size congruity) in visual search. In three experiments, participants had to detect a physically large (or small) target item among physically small (or large) distractors in a search task comprising single-digit numbers. The relative numerical size of the digits was varied, such that the target item was either among the numerically large or small numbers in the search display and the relation between numerical and physical size was either congruent or incongruent. Perceptual differences of the stimuli were controlled by a condition in which participants had to search for a differently coloured target item with the same physical size and by the usage of LCD-style numbers that were matched in visual similarity by shape transformations. The results of all three experiments consistently revealed that detecting a physically large target item is significantly faster when the numerical size of the target item is large as well (congruent), compared to when it is small (incongruent). This novel finding of a size congruity effect in visual search demonstrates an interaction between numerical and physical size in an experimental setting beyond typically used binary comparison tasks, and provides important new evidence for the notion of shared cognitive codes for numbers and sensorimotor magnitudes. Theoretical consequences for recent models on attention, magnitude representation and their interactions are discussed.},
  language  = {en}
}