@misc{WinterMatlockShakietal.2015, author = {Winter, Bodo and Matlock, Teenie and Shaki, Samuel and Fischer, Martin H.}, title = {Mental number space in three dimensions}, series = {Neuroscience \& biobehavioral reviews : official journal of the International Behavioral Neuroscience Society}, volume = {57}, journal = {Neuroscience \& biobehavioral reviews : official journal of the International Behavioral Neuroscience Society}, publisher = {Elsevier}, address = {Oxford}, issn = {0149-7634}, doi = {10.1016/j.neubiorev.2015.09.005}, pages = {209 -- 219}, year = {2015}, abstract = {A large number of experimental findings from neuroscience and experimental psychology demonstrated interactions between spatial cognition and numerical cognition. In particular, many researchers posited a horizontal mental number line, where small numbers are thought of as being to the left of larger numbers. This review synthesizes work on the mental association between space and number, indicating the existence of multiple spatial mappings: recent research has found associations between number and vertical space, as well as associations between number and near/far space. We discuss number space in three dimensions with an eye on potential origins of the different number mappings, and how these number mappings fit in with our current knowledge of brain organization and brain-culture interactions. We derive novel predictions and show how this research fits into a general view of cognition as embodied, grounded and situated. (C) 2015 Elsevier Ltd. All rights reserved.}, language = {en} } @article{WasnerMoellerFischeretal.2015, author = {Wasner, Mirjam and M{\"o}ller, Korbinian and Fischer, Martin H. and Nuerk, Hans-Christoph}, title = {Related but not the same: Ordinality, cardinality and 1-to-1 correspondence in finger-based numerical representations}, series = {Journal of cognitive psychology}, volume = {27}, journal = {Journal of cognitive psychology}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {2044-5911}, doi = {10.1080/20445911.2014.964719}, pages = {426 -- 441}, year = {2015}, abstract = {Finger-based numerical representations have gained increasing research interest. However, their description and assessment often refer to different numerical principles of ordinality, cardinality and 1-to-1 correspondence. Our aim was to investigate similarities and differences between these principles in finger-based numerical representations. Sixty-eight healthy adults performed ordinal finger counting, cardinal finger montring (showing the number of gestures) and finger-to-number mapping with twisted arms and fingers. We found that counting gestures and montring postures were identical for Number 10 but differed to varying degrees for other numbers. Interestingly, there was no systematic relation between finger-to-number mapping and ordinal finger counting habits. These data question the assumption of a unitary embodied finger-based numerical representation, but suggest that different finger-based representations co-exist and can be recruited flexibly depending on the numerical aspects to be conveyed.}, language = {en} } @article{SixtusFischer2015, author = {Sixtus, Elena and Fischer, Martin H.}, title = {Eine kognitionswissenschaftliche Betrachtung der Konzepte "Raum" und "Zahl"}, series = {Raum und Zahl im Fokus der Wissenschaften : eine multidisziplin{\"a}re Vorlesungsreihe}, journal = {Raum und Zahl im Fokus der Wissenschaften : eine multidisziplin{\"a}re Vorlesungsreihe}, publisher = {Trafo}, address = {Berlin}, isbn = {978-3-86464-082-7}, pages = {35 -- 62}, year = {2015}, language = {de} } @article{ShakiSeryFischer2015, author = {Shaki, Samuel and Sery, Noa and Fischer, Martin H.}, title = {1 + 2 is more than 2 + 1: Violations of commutativity and identity axioms in mental arithmetic}, series = {Journal of cognitive psychology}, volume = {27}, journal = {Journal of cognitive psychology}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {2044-5911}, doi = {10.1080/20445911.2014.973414}, pages = {471 -- 477}, year = {2015}, abstract = {Over the past decade or so, a large number of studies have revealed that conceptual meaning is sensitive to situational context. More recently, similar contextual influences have been documented in the domain of number knowledge. Here we show such context dependency in a length production task. Adult participants saw single digit addition problems of the form n1 + n2 and produced the sum by changing bi-directionally the length of a horizontally extended line, using radially arranged buttons. We found that longer lines were produced when n1 < n2 compared to n1 > n2 and that unit size increased with result size. Thus, the mathematical axioms of commutativity and identity do not seem to hold in mental addition. We discuss implications of these observations for our understanding of cognitive mechanisms involved in mental arithmetic and for situated cognition generally.}, language = {en} } @unpublished{ShakiFischer2015, author = {Shaki, Samuel and Fischer, Martin H.}, title = {Newborn chicks need no number tricks. Commentary: Number-space mapping in the newborn chick resembles humans' mental number line}, series = {Frontiers in human neuroscienc}, volume = {9}, journal = {Frontiers in human neuroscienc}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1662-5161}, doi = {10.3389/fnhum.2015.00451}, pages = {3}, year = {2015}, language = {en} } @misc{ShakiFischer2015, author = {Shaki, Samuel and Fischer, Martin H.}, title = {Newborn chicks need no number tricks}, series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, number = {414}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-406425}, pages = {3}, year = {2015}, abstract = {kein Abstract}, language = {en} } @article{PinhasShakiFischer2015, author = {Pinhas, Michal and Shaki, Samuel and Fischer, Martin H.}, title = {Addition goes where the big numbers are: evidence for a reversed operational momentum effect}, series = {Psychonomic bulletin \& review : a journal of the Psychonomic Society}, volume = {22}, journal = {Psychonomic bulletin \& review : a journal of the Psychonomic Society}, number = {4}, publisher = {Springer}, address = {New York}, issn = {1069-9384}, doi = {10.3758/s13423-014-0786-z}, pages = {993 -- 1000}, year = {2015}, abstract = {Number processing evokes spatial biases, both when dealing with single digits and in more complex mental calculations. Here we investigated whether these two biases have a common origin, by examining their flexibility. Participants pointed to the locations of arithmetic results on a visually presented line with an inverted, right-to-left number arrangement. We found directionally opposite spatial biases for mental arithmetic and for a parity task administered both before and after the arithmetic task. We discuss implications of this dissociation in our results for the task-dependent cognitive representation of numbers.}, language = {en} } @article{MyachykovCangelosiEllisetal.2015, author = {Myachykov, Andriy and Cangelosi, Angelo and Ellis, Rob and Fischer, Martin H.}, title = {The oculomotor resonance effect in spatial-numerical mapping}, series = {Acta psychologica : international journal of psychonomics}, volume = {161}, journal = {Acta psychologica : international journal of psychonomics}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0001-6918}, doi = {10.1016/j.actpsy.2015.09.006}, pages = {162 -- 169}, year = {2015}, abstract = {We investigated automatic Spatial-Numerical Association of Response Codes (SNARC) effect in auditory number processing. Two experiments continually measured spatial characteristics of ocular drift at central fixation during and after auditory number presentation. Consistent with the notion of a spatially oriented mental number line, we found spontaneous magnitude-dependent gaze adjustments, both with and without a concurrent saccadic task. This fixation adjustment (1) had a small-number/left-lateralized bias and (2) it was biphasic as it emerged for a short time around the point of lexical access and it received later robust representation around following number onset. This pattern suggests a two-step mechanism of sensorimotor mapping between numbers and space a first-pass bottom-up activation followed by a top-down and more robust horizontal SNARC Our results inform theories of number processing as well as simulation-based approaches to cognition by identifying the characteristics of an oculomotor resonance phenomenon. (C) 2015 Elsevier B.V. All rights reserved.}, language = {en} } @article{LobmaierFischer2015, author = {Lobmaier, Janek S. and Fischer, Martin H.}, title = {Facial Feedback Affects Perceived Intensity but Not Quality of Emotional Expressions}, series = {Brain Sciences}, volume = {5}, journal = {Brain Sciences}, number = {3}, publisher = {MDPI AG}, address = {Basel}, issn = {2076-3425}, doi = {10.3390/brainsci5030357}, pages = {357 -- 368}, year = {2015}, abstract = {Motivated by conflicting evidence in the literature, we re-assessed the role of facial feedback when detecting quantitative or qualitative changes in others' emotional expressions. Fifty-three healthy adults observed self-paced morph sequences where the emotional facial expression either changed quantitatively (i.e., sad-to-neutral, neutral-to-sad, happy-to-neutral, neutral-to-happy) or qualitatively (i.e. from sad to happy, or from happy to sad). Observers held a pen in their own mouth to induce smiling or frowning during the detection task. When morph sequences started or ended with neutral expressions we replicated a congruency effect: Happiness was perceived longer and sooner while smiling; sadness was perceived longer and sooner while frowning. Interestingly, no such congruency effects occurred for transitions between emotional expressions. These results suggest that facial feedback is especially useful when evaluating the intensity of a facial expression, but less so when we have to recognize which emotion our counterpart is expressing.}, language = {en} } @misc{LobmaierFischer2015, author = {Lobmaier, Janek S. and Fischer, Martin H.}, title = {Facial Feedback Affects Perceived Intensity but Not Quality of Emotional Expressions}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-96428}, pages = {357 -- 368}, year = {2015}, abstract = {Motivated by conflicting evidence in the literature, we re-assessed the role of facial feedback when detecting quantitative or qualitative changes in others' emotional expressions. Fifty-three healthy adults observed self-paced morph sequences where the emotional facial expression either changed quantitatively (i.e., sad-to-neutral, neutral-to-sad, happy-to-neutral, neutral-to-happy) or qualitatively (i.e. from sad to happy, or from happy to sad). Observers held a pen in their own mouth to induce smiling or frowning during the detection task. When morph sequences started or ended with neutral expressions we replicated a congruency effect: Happiness was perceived longer and sooner while smiling; sadness was perceived longer and sooner while frowning. Interestingly, no such congruency effects occurred for transitions between emotional expressions. These results suggest that facial feedback is especially useful when evaluating the intensity of a facial expression, but less so when we have to recognize which emotion our counterpart is expressing.}, language = {en} }