{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T16:51:23Z","timestamp":1776444683183,"version":"3.51.2"},"reference-count":75,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,29]],"date-time":"2022-01-29T00:00:00Z","timestamp":1643414400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Brain Sciences"],"abstract":"<jats:p>Number sense is the ability to estimate the number of items, and it is common to many species. Despite the numerous studies dedicated to unveiling how numerosity is processed in the human brain, to date, it is not clear whether the representation of numerosity is supported by a single general mechanism or by multiple mechanisms. Since it is known that deafness entails a selective impairment in the processing of temporal information, we assessed the approximate numerical abilities of deaf individuals to disentangle these two hypotheses. We used a numerosity discrimination task (2AFC) and an estimation task, in both cases using sequential (temporal) or simultaneous (spatial) stimuli. The results showed a selective impairment of the deaf participants compared with the controls (hearing) in the temporal numerosity discrimination task, while no difference was found to discriminate spatial numerosity. Interestingly, the deaf and hearing participants did not differ in spatial or temporal numerosity estimation. Overall, our results suggest that the deficit in temporal processing induced by deafness also impacts perception in other domains such as numerosity, where sensory information is conveyed in a temporal format, which further suggests the existence of separate mechanisms subserving the processing of temporal and spatial numerosity.<\/jats:p>","DOI":"10.3390\/brainsci12020179","type":"journal-article","created":{"date-parts":[[2022,1,29]],"date-time":"2022-01-29T23:02:06Z","timestamp":1643497326000},"page":"179","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Deprivation of Auditory Experience Influences Numerosity Discrimination, but Not Numerosity Estimation"],"prefix":"10.3390","volume":"12","author":[{"given":"Alessia","family":"Tonelli","sequence":"first","affiliation":[{"name":"U-VIP, Unit for Visually Impaired People, Istituto Italiano di Tecnologia, 16163 Genova, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Irene","family":"Togoli","sequence":"additional","affiliation":[{"name":"Cognitive Neuroscience Department, International School for Advanced Studies (SISSA), 34136 Trieste, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Arrighi","sequence":"additional","affiliation":[{"name":"Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, 50121 Florence, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Monica","family":"Gori","sequence":"additional","affiliation":[{"name":"U-VIP, Unit for Visually Impaired People, Istituto Italiano di Tecnologia, 16163 Genova, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,29]]},"reference":[{"key":"ref_1","unstructured":"Dehaene, S., and Brannon, E. 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