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41
The role of corticostriatal loops in auditory category learning
Yi, Han-Gyol. - 2017
Abstract: Sounds can signal danger (e.g., roar of a lion), pleasure, (e.g., music), or carry linguistic relevance (e.g. speech). For sounds to guide behavior, the complex soundscape must first be appropriately categorized (Bizley & Cohen, 2013; Nelken, Bizley, Shamma, & Wang, 2014). Currently, our understanding of the neural correlates of auditory categorization and learning is largely constrained to the cerebral cortex (Leech, Holt, Devlin, & Dick, 2009; Lim, Fiez, & Holt, 2014; F. Ohl, Scheich, & Freeman, 2001; F. W. Ohl & Scheich, 2005). Here, I focus on the striatum and its extensive connectivity between the cerebral cortex, referred to as corticostriatal loops (Parent & Hazrati, 1995). In vision, these loops have been purported to be involved in sensory, executive, motivational, and motor processing during acquisition of novel categories (Seger & Miller, 2010). An influential theory in visual category learning posits that the executive loop is critical in developing, testing, and using reflective rules to categorize percepts, whereas the motor loop is critical in reflexively learning categories (Ashby & Maddox, 2005, 2011). In this dissertation, I use a combination of structural and functional neuroimaging methods and behavioral training approach to examine the role of corticostriatal loops in auditory category learning. Structurally, I show that the connectivity between the auditory cortex and the caudate nucleus (sensory loop) relates to individual variability in speech category learning. Functionally, I show that successful categorization of speech sounds is associated with greater recruitment of the motor loop during stimulus, and a combination of executive, motivational, and motor loops during feedback processing. Finally, I present evidence that reflective learning of the auditory categories involves recruitment of the prefrontal cortex, whereas reflexive learning primarily involves the motor loop (Ashby & Maddox, 2005, 2011). Altogether, these results suggest that (1) multiple corticostriatal loops are engaged during auditory category learning; (2) successful categorization of a stimulus is contingent on recruitment of the prefrontal or motor cortex; and (3) feedback is integrated throughout training via executive and motivational loops. ; Communication Sciences and Disorders
Keyword: Auditory; Category learning; Corticostriatal loops
URL: http://hdl.handle.net/2152/62983
https://doi.org/10.15781/T27S7J85F
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42
Temporo-parietal connectivity uniquely predicts reading change from childhood to adolescence
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43
Large grain instruction and phonological awareness skill influence rime sensitivity, processing speed, and early decoding skill in adult L2 learners
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44
Skill Dependent Audiovisual Integration in the Fusiform Induces Repetition Suppression
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45
Evidence based practice for adolescent reading comprehension instruction : a guide for SLPs in an expanded school role
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46
Developmental differences in the influence of phonological similarity on spoken word processing in Mandarin Chinese
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 138 (2014), 38-50
OLC Linguistik
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47
Developmental dissociation in the neural responses to simple multiplication and subtraction problems
In: ISSN: 1363-755X ; EISSN: 1467-7687 ; Developmental Science ; https://hal.archives-ouvertes.fr/hal-01103401 ; Developmental Science, Wiley, 2014, 17, pp.Issue: 4 Pages: 537-552. ⟨10.1111/desc.12140⟩ (2014)
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48
The Differential Role of Verbal and Spatial Working Memory in the Neural Basis of Arithmetic
In: ISSN: 8756-5641 ; EISSN: 1532-6942 ; Developmental Neuropsychology ; https://hal.archives-ouvertes.fr/hal-01103427 ; Developmental Neuropsychology, Taylor & Francis (Routledge), 2014, 39, pp.Issue : 6 Pages : 440-458. ⟨10.1080/87565641.2014.939182⟩ (2014)
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49
Distributed neural representations of logical arguments in school-age children
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50
The brain adapts to orthography with experience: Evidence from English and Chinese
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51
Multimodal Lexical Processing in Auditory Cortex Is Literacy Skill Dependent
McNorgan, Chris; Awati, Neha; Desroches, Amy S.. - : Oxford University Press, 2014
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52
Brain activation during phonological and semantic processing of Chinese characters in deaf signers
Li, Yanyan; Peng, Danling; Liu, Li. - : Frontiers Media S.A., 2014
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53
Task Dependent Lexicality Effects Support Interactive Models of Reading: A Meta-Analytic Neuroimaging Review
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54
Developmental Differences in the Influence of Phonological Similarity on Spoken Word Processing in Mandarin Chinese
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55
Developmental differences in the influence of phonological similarity on spoken word processing in Mandarin Chinese.
In: Brain and Mind Institute Researchers' Publications (2014)
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56
Age, sex, and verbal abilities affect location of linguistic connectivity in ventral visual pathway
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 124 (2013) 2, 184-193
OLC Linguistik
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57
Fractionating the neural substrates of transitive reasoning: task-dependent contributions of spatial and verbal representations.
In: ISSN: 1047-3211 ; EISSN: 1460-2199 ; Cerebral Cortex ; https://hal.archives-ouvertes.fr/hal-00904141 ; Cerebral Cortex, Oxford University Press (OUP), 2013, 23 (3), pp.499-507. ⟨10.1093/cercor/bhr389⟩ (2013)
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58
The neural bases of the multiplication problem-size effect across countries.
In: ISSN: 1662-5161 ; Frontiers in Human Neuroscience ; https://hal.archives-ouvertes.fr/hal-00904139 ; Frontiers in Human Neuroscience, Frontiers, 2013, 7, pp.189. ⟨10.3389/fnhum.2013.00189⟩ (2013)
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59
Multimodal Lexical Processing in Auditory Cortex Is Literacy Skill Dependent
McNorgan, Chris; Awati, Neha; Desroches, Amy S.. - : Oxford University Press, 2013
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60
Cross-modal integration in the brain is related to phonological awareness only in typical readers, not in those with reading difficulty
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