Anatomy and White Matter Connections of the Inferior Temporal Gyrus

Lin, Yueh‐Hsin; Young, Isabella M.; Conner, Andrew K.; Glenn, Chad A.; Chakraborty, Arijit; Nix, Cameron E.; Bai, Michael Y.; Dhanaraj, Vukshitha; Fonseka, R. Dineth; Hormovas, Jorge; Tanglay, Onur; Briggs, Robert G.; Sughrue, Michael E.

doi:10.1016/j.wneu.2020.08.058

Cited by 89 publications

(72 citation statements)

References 70 publications

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“…The thalamic peak coordinates of the response inhibition paradigm seemed to overlap with our PFC_thalamus that further support our study. Our investigation complemented the findings of thalamus in heroin‐related cognitive literature by showing negative correlation between TMT‐A scores and thalamic RSFC with several regions, including ITG (involved in visual comprehensions), fusiform (involved in the processing of visual information) and precuneus (involved in environmental monitoring and awareness) (Cavanna & Trimble, 2006; Lin et al, 2020; Palejwala et al, 2020). We found the involvement in information processing of PFC_thalamus‐centered circuits, a potential neuroimaging biomarker of cognitive impairment in acute abstinent HU.…”

Section: Discussionsupporting

confidence: 82%

Reduced thalamic resting‐state functional connectivity and impaired cognition in acute abstinent heroin users

Zhang

Liu

Wang

et al. 2021

Human Brain Mapping

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As a critical component of cortico‐striato‐thalamo‐cortical loop in addiction, our understanding of the thalamus in impaired cognition of heroin users (HU) has been limited. Due to the complex thalamic connection with cortical and subcortical regions, thalamus was divided into prefrontal (PFC), occipital (OC), premotor, primary motor, sensory, temporal, and posterior parietal association subregions according to white matter tractography. We adopted seven subregions of bilateral thalamus as regions of interest to systematically study the implications of distinct thalamic nuclei in acute abstinent HU. The volume and resting‐state functional connectivity (RSFC) differences of the thalamus were investigated between age‐, gender‐, and alcohol‐matched 37 HU and 33 healthy controls (HCs). Trail making test‐A (TMT‐A) was adopted to assess cognitive function deficits, which were then correlated with neuroimaging findings. Although no significant different volumes were found, HU group showed decreased RSFC between left PFC_thalamus and middle temporal gyrus as well as between left OC_thalamus and inferior frontal gyrus and supplementary motor area relative to HCs. Meanwhile, the higher TMT‐A scores in HU were negatively correlated with PFC_thalamic RSFC with inferior temporal gyrus, fusiform, and precuneus. Craving scores were negatively correlated with OC_thalamic RSFC with accumbens, hippocampus, and insula. Opiate Withdrawal Scale scores were negatively correlated with left PFC/OC_thalamic RSFC with orbitofrontal cortex and medial PFC. We indicated two thalamus subregions separately involvement in cognitive control and craving to reveal the implications of thalamic subnucleus in pathology of acute abstinent HU.

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Section: Discussionsupporting

confidence: 82%

Reduced thalamic resting‐state functional connectivity and impaired cognition in acute abstinent heroin users

Zhang

Liu

Wang

et al. 2021

Human Brain Mapping

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“…In line with this, another MVPA study by Brooks et al (2019) demonstrated that the single subjects' conceptual space predicts the neural pattern activation in the right FFA (Brooks et al 2019). We observed a strengthening in the neural similarity between emotional categories in these regions (Kim, Shinkareva, and Wedell 2017), probably because of the influence of the precuneus, which is involved in valence representation and structurally connected with the ITC (Lin et al 2020).…”

Section: Discussionsupporting

confidence: 83%

Emotion increases the similarity between neural representations of pictures, but not their perceived similarity

Riberto

Pobric

et al. 2021

Preprint

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Emotional similarity refers to the tendency to group stimuli together because they evoke the same feelings in us, even when they look different and have different semantic meanings. It is still unclear which features define the similarity space of emotional categories. Additionally, whether emotional stimuli are perceived as more similar than neutral ones, and whether this difference is paralleled by differences in their neural representations, has never been investigated. We conducted a series of experiments to quantify behavioural similarity, and one that used fMRI and Representation similarity analysis to compute neural similarity. We hypothesised that the similarity between emotional stimuli will be greater than between non-emotional stimuli, paralleled by higher neural similarity among emotional stimuli. We tested these hypotheses with two measures of similarity and two different databases of complex negative and neutral pictures, the second of which allowed us to control semantic similarity. For the first time, we found a decoupling between subjective and objective measures of emotional similarity. Pictures taken from two distinct emotional and neutral categories were perceived as equally similar; however, their neural similarity was higher. This effect was detected in brain clusters localised in a constrained search volume. We conclude that features representing participants similarity space may have different weights in these regions than they do in explicit ratings.

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“…Previous work has referred to this tract using a multitude of names including, the SLF-V (Koutsarnakis et al, 2015;Wu et al, 2016b), SLF temporo-parietal connection with the inferior parietal lobule (Makris et al, 2005;Kamali et al, 2014aKamali et al, , 2014b, vertical arcuate fasciculus (Makris et al, 2005;, vertical SLF (Martino et al, 2013a;Martino and De Lucas, 2014), perisylvian SLF Martino et al, 2013b), posterior SLF (Martino et al, 2013b), indirect arcuate fasciculus (Turken and Dronkers, 2011), temporoparietal aslant tract , parieto temporal long association fibers (Oishi et al, 2008), anterior vertical occipital fasciculus (Choi et al, 2020), and "U-fiber" (Lin et al, 2020). Given all of the labels attached to the pArc, this bundle has clear nomenclature issues that may have stymied progress in its study.…”

Section: Posterior Arcuate Fasciculusmentioning

confidence: 99%

A taxonomy of the brain’s white matter: Twenty-one major tracts for the twenty-first century

Bullock¹,

Ea²,

Grier³

et al. 2021

Preprint

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The functional and computational properties of brain areas are determined, in large part, by their connectivity profiles. Advances in neuroimaging and network neuroscience allow us to characterize the human brain noninvasively and in vivo, but a comprehensive understanding of the human brain demands an account of the anatomy of brain connections. Long-range anatomical connections are instantiated by white matter and organized into tracts. Here, we aim to characterize the connections, morphology, traversal, and functions of the major white matter tracts in the brain. It is clear that there are significant discrepancies across different accounts of white matter tract anatomy, hindering our attempts to accurately map the connectivity of the human brain. We thoroughly synthesize accounts from multiple methods, but especially nonhuman primate tract-tracing and human diffusion tractography. Ultimately, we suggest that our synthesis provides an essential reference for neuroscientists and clinicians interested in brain connectivity and anatomy, allowing for the study of the association of white matter’s macro and microstructural properties with behavior, development, and disordered processes.

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Anatomy and White Matter Connections of the Inferior Temporal Gyrus

Cited by 89 publications

References 70 publications

Reduced thalamic resting‐state functional connectivity and impaired cognition in acute abstinent heroin users

Reduced thalamic resting‐state functional connectivity and impaired cognition in acute abstinent heroin users

Emotion increases the similarity between neural representations of pictures, but not their perceived similarity

A taxonomy of the brain’s white matter: Twenty-one major tracts for the twenty-first century

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