Neural correlates for numerical processing in the manual mode.

This paper reports a study designed to examine the neuronal correlates for comprehending the signs of American Sign Language representing numerals in deaf signers who acquired Japanese Sign Language as their first language. The participants were scanned by functional magnetic resonance imaging (fMRI) twice on the day of the experiment. The results of the measurements revealed that upon learning that the signs actually have numeric meaning, a network of brain areas is activated immediately. Many of these areas have been previously implicated in numerical processing. The similar neural network of brain regions responsible for numerical processing exists on a nonlinguistical basis and works to retrieve arithmetic facts from presented linguistic material regardless of the mode of the language.

[1]  J P Rauschecker,et al.  Hemispheric specialization for English and ASL: left invariance‐right variability , 1998, Neuroreport.

[2]  Rachel I. Mayberry,et al.  Language acquisition by eye , 2000 .

[3]  Ursula Bellugi,et al.  What's right about the neural organization of sign language? A perspective on recent neuroimaging results , 1998, Trends in Cognitive Sciences.

[4]  U. Bellugi,et al.  Language, modality and the brain , 1989, Trends in Neurosciences.

[5]  I. Johnsrude,et al.  The problem of functional localization in the human brain , 2002, Nature Reviews Neuroscience.

[6]  N. Masataka.  The onset of language , 2003 .

[7]  D Bavelier,et al.  Cerebral organization for language in deaf and hearing subjects: biological constraints and effects of experience. , 1998, Proceedings of the National Academy of Sciences of the United States of America.

[8]  Ursula Bellugi,et al.  The neural organization of language: evidence from sign language aphasia , 1998, Trends in Cognitive Sciences.

[9]  A. Fernald,et al.  Expanded Intonation Contours in Mothers' Speech to Newborns. , 1984 .

[10]  K. Emmorey.  Language, Cognition, and the Brain: Insights From Sign Language Research , 2001 .

[11]  C. Gallistel,et al.  Preverbal and verbal counting and computation , 1992, Cognition.

[12]  N. Masataka.  Differences in arithmetic subtraction of nonsymbolic numerosities by deaf and hearing adults. , 2005, Journal of deaf studies and deaf education.

[13]  E. Klima.  The signs of language , 1979 .

[14]  E. Spelke,et al.  Sources of mathematical thinking: behavioral and brain-imaging evidence. , 1999, Science.

[15]  E. Spelke,et al.  The construction of large number representations in adults , 2003, Cognition.

[16]  Hiroshi Matsuda,et al.  Neural correlates for learning to read Roman numerals , 2007, Brain and Language.

[17]  T. Ohnishi,et al.  Functional anatomy of musical perception in musicians , 2001, NeuroImage.

[18]  J. Decety,et al.  From the perception of action to the understanding of intention , 2001, Nature reviews. Neuroscience.

[19]  U. Frith.  Mind Blindness and the Brain in Autism , 2001, Neuron.

[20]  E. Spelke,et al.  Large number discrimination in 6-month-old infants , 2000, Cognition.

[21]  C. Gallistel.  The organization of learning , 1990 .

[22]  S. Dehaene,et al.  Is numerical comparison digital? Analogical and symbolic effects in two-digit number comparison. , 1990, Journal of experimental psychology. Human perception and performance.

[23]  J. Freischlag,et al.  Response , 1994, Science.

[24]  Kiyotaka Nemoto,et al.  The neural network for the mirror system and mentalizing in normally developed children: an fMRI study , 2004, Neuroreport.

[25]  S. Dehaene,et al.  FROM NUMBER NEURONS TO MENTAL ARITHMETIC : THE , 2003 .

[26]  Tessei Kobayashi,et al.  Numerical competence in rats (Rattus norvegicus): Davis and Bradford (1986) extended. , 2000, Journal of comparative psychology.

[27]  Nancy Kanwisher,et al.  Non-symbolic arithmetic in adults and young children , 2006, Cognition.

[28]  Carol A. Padden.  Linguistics: The Cambridge Survey: Grammatical theory and signed languages , 1988 .

[29]  C. Packer,et al.  Roaring and numerical assessment in contests between groups of female lions, Panthera leo , 1994, Animal Behaviour.

[30]  K. Hiraki,et al.  Baby arithmetic: one object plus one tone , 2004, Cognition.