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1
Efficient localization of the cortical language network and its functional neuroanatomy in dyslexia
Lee, Jayden J.. - 2022
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2
Neural bases of phonological working memory
Scott, Terri L.. - 2020
Abstract: Phonological working memory (PWM) is the mind's capacity for maintaining and manipulating representations of the sounds important for speech when they are not actively being perceived. It is believed to be a critical component supporting typical language acquisition and vocabulary development, as well as second-language learning. Despite the success of the theoretical framework traditionally used to conceptualize PWM, consensus on its instantiation in the brain remains elusive. In this thesis, I will describe a series of studies designed to interrogate the functionality of the brain regions supporting PWM. In Chapter 1, we compare activation patterns from a canonical PWM task, nonword repetition, to nonword discrimination, a matched task designed to engage core PWM functions, but for the purpose of comparing stimuli, not repeating them. We replicate the findings that PWM during nonword repetition engages speech cortices and show that these cortical regions are also reliably engaged in nonword discrimination, in individual subjects. In Chapter 2, we directly assess the extent to which conjunctive activation between language and working memory paradigms can be interpreted as shared functionality. We find that despite the ability to localize regions in which the majority of subjects show conjunction of significant activation between tasks, the pattern similarity between tasks within those regions vary. We find no pattern similarity between language and spatial working memory, and marginal similarities between language and verbal working memory. Verbal working memory and spatial working memory conjunctions localize a similar network to the multiple demand network and find highly similar patterns of activation in these regions across working memory tasks. Finally, in Chapter 3, we investigate the functional properties of brain areas supporting PWM by comparing activation between nonword repetition, language, verbal working memory, and spatial working memory tasks. We find that PWM shares support with areas involved in spoken language perception, as well as regions engaged by working memory tasks that lie outside of the core language network. Taken together, these studies give a detailed account of the neural bases of PWM, through the lens of shared functionality between this capacity, language, and other domains of working memory.
Keyword: fMRI; Language; Neurosciences; Phonological working memory; Working memory
URL: https://hdl.handle.net/2144/41116
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3
Perceptual adaptation to speech in calibrated noise
Saupe, Maya. - 2020
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4
Examining morphological differences in Heschl's gyrus between neurotypical and dyslexic brains
Chin, Jamie A.. - 2020
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5
Selecting among competing models of talker adaptation: Attention, cognition, and memory in speech processing efficiency
In: Cognition (2020)
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6
Noninvasive neurostimulation of left ventral motor cortex enhances sensorimotor adaptation in speech production
In: Brain Lang (2020)
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7
Hierarchical contributions of linguistic knowledge to talker identification: Phonological versus lexical familiarity [<Journal>]
McLaughlin, Deirdre E. [Verfasser]; Carter, Yaminah D. [Verfasser]; Cheng, Cecilia C. [Verfasser].
DNB Subject Category Language
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8
Time course of talker adaptation
Kou, Sio Nga. - 2019
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9
The effects of talker familiarity on talker normalization
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10
Effects of type, token, and talker variability in speech processing efficiency
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11
Common cortical architectures for phonological working memory identified in individual brains
In: Neuroimage (2019)
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12
Time and information in perceptual adaptation to speech
In: Cognition (2019)
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13
Acoustic and linguistic factors affecting perceptual dissimilarity judgments of voices
In: J Acoust Soc Am (2019)
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14
Effects of talker continuity and speech rate on auditory working memory
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15
Hierarchical contributions of linguistic knowledge to talker identification: Phonological vs. lexical familiarity
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16
Persistent Neurobehavioral Markers of Developmental Morphosyntax Errors in Adults
In: J Speech Lang Hear Res (2019)
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17
Noninvasive neurostimulation of left temporal lobe disrupts rapid talker adaptation in speech processing
In: Brain Lang (2019)
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18
Effects of early language experiences on the auditory brainstem
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19
Sensorimotor adaptation to auditory perturbation of speech is facilitated by noninvasive brain stimulation
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20
Varying acoustic-phonemic ambiguity reveals that talker normalization is obligatory in speech processing
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