Working Papershttp://repository.iiitd.edu.in/xmlui/handle/123456789/6222026-04-10T21:53:28Z2026-04-10T21:53:28ZGray matter volume correlates of the spatial distribution of visual attention in high trait anxietyChakrabarty, Mrinmoy (Advisor)Mir, Suhail RafiqSingh, Varsha (Advisor)http://repository.iiitd.edu.in/xmlui/handle/123456789/17052024-11-26T22:00:08Z2024-10-05T00:00:00ZGray matter volume correlates of the spatial distribution of visual attention in high trait anxiety
Chakrabarty, Mrinmoy (Advisor); Mir, Suhail Rafiq; Singh, Varsha (Advisor)
Flexible allocation of attentional resources to different spatial loci is crucial to meet the demands of a dynamic environment that we navigate daily. The inability to adaptively redistribute spatial attention may lead to constricted or tunnel vision, which may compromise sampling the span of the visual field towards optimizing visually guided behaviour. This is of interest in anxious individuals, who are known to have biases in visual processing. We used a modified affect-primed, visual-spatial behavioural attention task with structural magnetic resonance imaging (sMRI) in a sample of healthy young adults with varying degrees of trait(dispositional) anxiety (n = 60 with 23 females; age [mean ± s.d.] = 22.8 ± 3.8; trait anxiety [mean ± s.d.] = 46.52 ± 11.04). Using objective measures from the behavioural task and sMRI, we explored if a) fear and neutral affect from image primes differed relative to no affect (scrambled image prime) in modulating the distribution of visual spatial attention; b) an association existed between the gray matter volume (GMV) of any particular region(s) of the whole brain and a measure of the spatial distribution of attention by individual valences of affect and overall.
Conference: Society for Neuroscience 2024, Chicago, USA - October 5-9, 2024.
2024-10-05T00:00:00ZMemory of emotional events under cognitive load influence resting state functional brain connectivity in subclinical anxietyKinger, ShrutiChakrabarty, Mrinmoy (Advisor)http://repository.iiitd.edu.in/xmlui/handle/123456789/17042024-11-26T22:00:12Z2024-12-13T00:00:00ZMemory of emotional events under cognitive load influence resting state functional brain connectivity in subclinical anxiety
Kinger, Shruti; Chakrabarty, Mrinmoy (Advisor)
Memory suppression is an active process that voluntarily prevents the intrusion of undesirable memories into one's conscious awareness. However, the process may trigger ironic effects, meaning such suppressed memories become more accessible to the conscious mind. Cognitive load is one of the factors contributing to ironic effects. The influence of directed remembering and suppression of emotionally valenced memories under cognitive load in anxiety are sparse in the literature, to our knowledge. We, therefore, measured whether the directed remembering/recall or suppression of emotionally valenced memories impact an independent visual working memory task (imposing a cognitive load) in healthy young adults with dispositional/subclinical anxiety and its association with resting state functional connectivity (rsfc).
Conference: 11th Annual Meeting of the Cognitive Science Society (ACCS) 2024, Indian Institute of Technology Bombay (IITB) Mumbai, INDIA - December 13-15, 2024
2024-12-13T00:00:00ZMapping fear affect and inhibitory control in young adult brains : insights from resting-state functional connectivityKinger, ShrutiSuri, KapaliChakrabarty, Mrinmoy (Advisor)http://repository.iiitd.edu.in/xmlui/handle/123456789/17032024-11-26T22:00:12Z2024-10-05T00:00:00ZMapping fear affect and inhibitory control in young adult brains : insights from resting-state functional connectivity
Kinger, Shruti; Suri, Kapali; Chakrabarty, Mrinmoy (Advisor)
The cognitive component of anxiety, measured using the Fear Affect scale of the National Institutes of Health toolbox, stems from perceived threats of events distant in space and time. Since anxiety is known to impact higher cognitive functions in daily life, potentially leading to cognitive behavioural disorders, we aimed to identify salient whole-brain resting state functional connectivity (rsfc) patterns that explain the negative affect associated with it and the role it plays in influencing the rsfc patterns related to an aspect of executive function (inhibitory control on visual distractors)
using Human Connectome Project dataset. The results show a few key resting-state functional brain networks associated with fear-affect.
Conference: Society for Neuroscience 2024, Chicago, USA - October 5-9, 2024.
2024-10-05T00:00:00ZStructural brain correlates of autism spectrum disorder and its co-morbid depressionSaraf, ChetanSehwag, SaanviDhar, DolcyChakrabarty, Mrinmoy (Advisor)http://repository.iiitd.edu.in/xmlui/handle/123456789/12982023-08-02T22:00:21Z2023-01-01T00:00:00ZStructural brain correlates of autism spectrum disorder and its co-morbid depression
Saraf, Chetan; Sehwag, Saanvi; Dhar, Dolcy; Chakrabarty, Mrinmoy (Advisor)
• Autism Spectrum Disorder (ASD) impacts multiple areas of cognitive development leading to atypical behavioral manifestations in these individuals.
• This study focuses on regional differences in grey matter volume (rGMV) in the ASD brain as well as its interaction with overall severity of clinical symptomatology and co-morbid depression.
2023-01-01T00:00:00Z