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The neuronal code for number.
Nieder A. Nieder A. Nat Rev Neurosci. 2016 Jun;17(6):366-82. doi: 10.1038/nrn.2016.40. Epub 2016 May 6. Nat Rev Neurosci. 2016. PMID: 27150407 Review.
Humans and non-human primates share an elemental quantification system that resides in a dedicated neural network in the parietal and frontal lobes. ...Beyond an understanding of how cardinal numbers are encoded, number processing provides a window into the neuronal …
Humans and non-human primates share an elemental quantification system that resides in a dedicated neural network in the parietal and …
Perception and neuronal coding of subjective contours in the owl.
Nieder A, Wagner H. Nieder A, et al. Nat Neurosci. 1999 Jul;2(7):660-3. doi: 10.1038/10217. Nat Neurosci. 1999. PMID: 10404200
Moreover, single-neuron recordings from visual forebrain (visual Wulst) of awake, behaving birds revealed a high proportion of neurons signaling such subjective contours, independent of local stimulus attributes. These data suggest that the visual Wulst is important in con …
Moreover, single-neuron recordings from visual forebrain (visual Wulst) of awake, behaving birds revealed a high proportion of neuron …
Counting on neurons: the neurobiology of numerical competence.
Nieder A. Nieder A. Nat Rev Neurosci. 2005 Mar;6(3):177-90. doi: 10.1038/nrn1626. Nat Rev Neurosci. 2005. PMID: 15711599 Review.
A labeled-line code for small and large numerosities in the monkey prefrontal cortex.
Nieder A, Merten K. Nieder A, et al. J Neurosci. 2007 May 30;27(22):5986-93. doi: 10.1523/JNEUROSCI.1056-07.2007. J Neurosci. 2007. PMID: 17537970 Free PMC article.
Here, we analyzed both behavioral and neuronal representations of a broad range of numerosities from 1 to 30 in the prefrontal cortex of monkeys. Numerosity-selective neurons showed a clear and behaviorally relevant labeled-line code for all numerosities. Moreover, …
Here, we analyzed both behavioral and neuronal representations of a broad range of numerosities from 1 to 30 in the prefrontal cortex …
Neuronal population coding of continuous and discrete quantity in the primate posterior parietal cortex.
Tudusciuc O, Nieder A. Tudusciuc O, et al. Among authors: nieder a. Proc Natl Acad Sci U S A. 2007 Sep 4;104(36):14513-8. doi: 10.1073/pnas.0705495104. Epub 2007 Aug 27. Proc Natl Acad Sci U S A. 2007. PMID: 17724337 Free PMC article.
The posterior parietal cortex in primates has been implicated in representing abstract quantity, both continuous (extent) and discrete (number of items), supporting the idea of a putative generalized magnitude system in this brain area. ...Using a statistical classi …
The posterior parietal cortex in primates has been implicated in representing abstract quantity, both continuous (extent) and discrete (numb …
The ABC of cardinal and ordinal number representations.
Jacob SN, Nieder A. Jacob SN, et al. Among authors: nieder a. Trends Cogn Sci. 2008 Feb;12(2):41-3. doi: 10.1016/j.tics.2007.11.006. Trends Cogn Sci. 2008. PMID: 18178515
Yet, although numbers can convey different meanings, a recent imaging study by Fias and coworkers showed that ranking letters in the alphabet is subserved by a cortical network highly similar to that involved in judging magnitudes. ...
Yet, although numbers can convey different meanings, a recent imaging study by Fias and coworkers showed that ranking letters in the …
Complementary contributions of prefrontal neuron classes in abstract numerical categorization.
Diester I, Nieder A. Diester I, et al. Among authors: nieder a. J Neurosci. 2008 Jul 30;28(31):7737-47. doi: 10.1523/JNEUROSCI.1347-08.2008. J Neurosci. 2008. PMID: 18667606 Free PMC article.
Here, we inferred the major cortical cell types, putative pyramidal cells, and interneurons by characterizing the waveforms of action potentials recorded in monkeys performing a cognitively demanding numerosity categorization task. Putative interneurons responded much fast …
Here, we inferred the major cortical cell types, putative pyramidal cells, and interneurons by characterizing the waveforms of action potent …
Behavioral and prefrontal representation of spatial proportions in the monkey.
Vallentin D, Nieder A. Vallentin D, et al. Among authors: nieder a. Curr Biol. 2008 Sep 23;18(18):1420-5. doi: 10.1016/j.cub.2008.08.042. Curr Biol. 2008. PMID: 18804374
Primate brains are equipped with evolutionarily old and dedicated neural circuits so that they can grasp absolute quantities, such as the number of items or the length of a line. ...We report that rhesus monkeys can discriminate proportions (1:4, 2:4, 3:4, and 4:4) specifi …
Primate brains are equipped with evolutionarily old and dedicated neural circuits so that they can grasp absolute quantities, such as the nu …
Numerical values leave a semantic imprint on associated signs in monkeys.
Diester I, Nieder A. Diester I, et al. Among authors: nieder a. J Cogn Neurosci. 2010 Jan;22(1):174-83. doi: 10.1162/jocn.2009.21193. J Cogn Neurosci. 2010. PMID: 19199420
This provides evidence for a precursor of the human number symbol knowledge....
This provides evidence for a precursor of the human number symbol knowledge....
Contributions of primate prefrontal and posterior parietal cortices to length and numerosity representation.
Tudusciuc O, Nieder A. Tudusciuc O, et al. Among authors: nieder a. J Neurophysiol. 2009 Jun;101(6):2984-94. doi: 10.1152/jn.90713.2008. Epub 2009 Mar 25. J Neurophysiol. 2009. PMID: 19321641
Both length and numerosity were coded by tuning functions peaking at the preferred quantity, thus supporting a labeled-line code for continuous and discrete quantity. A comparison of the response characteristics between parietal and frontal areas revealed a l …
Both length and numerosity were coded by tuning functions peaking at the preferred quantity, thus supporting a labeled-line code for …
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