The long-term objective of this Career Development Award to Promote Diversity in Neuroscience Research is to develop the candidate's skills in applying novel brain network approaches to the study of neurodevelopmental disorders, and in conducting clinical assessments, so that she can become an independent investigator in the fields of neuroimaging and autism research. Specifically, the candidate will develop expertise in using diffusion tensor imaging (DTI) data in conjunction with recently developed multivariate pattern classification and effective connectivity analyses of functional magnetic resonance imaging (fMRI) data to examine structural and intrinsic functional brain connectivity underlying atypical behavior and cognition in children with autism spectrum disorders (ASD). To this end, the candidate will be mentored and trained by experts in the fields of neuroimaging, engineering, clinical psychology, neurology and psychiatry. The candidate will also gain critical experience in clinical assessments necessary for successfully working with children with ASD. In addition, the candidate will undertake formal coursework and attend seminars in functional neuroimaging, clinical psychology, and computer programming to achieve this goal. The research project proposed by the candidate will enable the acquisition of the skills required to become a successful independent investigator in the field of developmental cognitive neuroscience. ASD is a complex neurodevelopmental disorder of largely unknown etiology, characterized by social communicative impairments, restricted interests, and repetitive and stereotyped behaviors. The main goal of the proposed research is to examine aberrant structural and functional brain connectivity underlying atypical cognition and behavior in children with ASD. The candidate proposes to probe large-scale brain networks using DTI and fMRI to examine possible aberrant cortical connectivity and compromises in dynamic interactions between networks in children with ASD. She will specifically test a novel systems-level hypothesis she has put forth, synthesizing recent advances in brain network connectivity with converging evidence from neuroimaging studies in autism. The hypothesis is that hypoactivity of the anterior insula during processing of social stimuli results in reduced salience detection in individuals with ASD, which impairs dynamic switching between other large-scale brain networks important for cognition. Additionally, she will explore methods to establish brain-based biomarkers to distinguish children with ASD from typically developing children using a combination of brain connectivity measures and cognitive and behavioral measures. Completion of this research project and training plan will enable Dr. Uddin to gain proficiency relevant to her goal of becoming an independent investigator in the fields of autism and neuroimaging research, and will also facilitate the principled development of biomarkers of brain network dysfunction in ASD. This Career Development Award is consistent with the NIH goals to promote diversity in neuroscience research. )

Public Health Relevance

Autism spectrum disorders (ASD) affect 1:150 individuals; and the incidence continues to rise steadily; making the disorder an urgent public health concern. ASD results in lifelong difficulties for afflicted individuals and their families; and there is no known cure. Recently developed analytic tools have enabled the study of brain connectivity in vivo; revealing important principles of brain organization in individuals with ASD. Characterization of the integrity and functional roles of brain networks; as well as interactions between them; will help us to understand the underlying brain differences in individuals with ASD and eventually lead to the development of more effective treatments and therapies. )

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Scientist Development Award - Research & Training (K01)
Project #
7K01MH092288-05
Application #
8757095
Study Section
NST-2 Subcommittee (NST)
Program Officer
Gilotty, Lisa
Project Start
2014-01-01
Project End
2015-06-30
Budget Start
2014-01-01
Budget End
2014-06-30
Support Year
Fiscal Year
2014
Total Cost
$137,973
Indirect Cost
$10,220
Name
University of Miami Coral Gables
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
625174149
City
Coral Gables
State
FL
Country
United States
Zip Code
33146
Chen, Heng; Duan, Xujun; Liu, Feng et al. (2016) Multivariate classification of autism spectrum disorder using frequency-specific resting-state functional connectivity--A multi-center study. Prog Neuropsychopharmacol Biol Psychiatry 64:1-9
Odriozola, Paola; Uddin, Lucina Q; Lynch, Charles J et al. (2016) Insula response and connectivity during social and non-social attention in children with autism. Soc Cogn Affect Neurosci 11:433-44
Nomi, Jason S; Vij, Shruti Gopal; Dajani, Dina R et al. (2016) Chronnectomic patterns and neural flexibility underlie executive function. Neuroimage :
Dajani, Dina R; Uddin, Lucina Q (2016) Local brain connectivity across development in autism spectrum disorder: A cross-sectional investigation. Autism Res 9:43-54
Dajani, Dina R; Llabre, Maria M; Nebel, Mary Beth et al. (2016) Heterogeneity of executive functions among comorbid neurodevelopmental disorders. Sci Rep 6:36566
Nomi, Jason S; Farrant, Kristafor; Damaraju, Eswar et al. (2016) Dynamic functional network connectivity reveals unique and overlapping profiles of insula subdivisions. Hum Brain Mapp 37:1770-87
Uddin, Lucina Q (2015) Salience processing and insular cortical function and dysfunction. Nat Rev Neurosci 16:55-61
Nomi, Jason S; Uddin, Lucina Q (2015) Developmental changes in large-scale network connectivity in autism. Neuroimage Clin 7:732-41
Dajani, Dina R; Uddin, Lucina Q (2015) Demystifying cognitive flexibility: Implications for clinical and developmental neuroscience. Trends Neurosci 38:571-8
Uddin, Lucina Q (2015) Idiosyncratic connectivity in autism: developmental and anatomical considerations. Trends Neurosci 38:261-3

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