Centre for Neuroscience (CNS)
Recent Submissions
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Control and Co-ordination in Multi-Joint Movements
Our interactions with the world often entail a wide range of multi-jointed movements. We are bestowed with an abundant degree of freedom, that a movement can be achieved by recruiting multiple joints, muscles, and neural ... -
Behavioural and neural signatures of interactions between conflicting emotion and reward
Reward-related events seldom occur in isolation in our everyday lives — a component of emotion processing remains intertwined in many cases. For instance, individuals often work under hostile conditions for higher pay or ... -
Studying induced and evoked oscillations for probing visual and auditory circuit mechanisms
Specialized sensory regions process incoming sensory inputs using a variety of mechanisms, such as normalization and excitatory-inhibitory interactions. These mechanisms can be studied through induced and evoked oscillations, ... -
Circuit mechanisms of itch modulation: from physiology to pathology
Itch is a distinct somatosensation, evoked by chemical and mechanical pruritogens or psychosomatic factors. It detects harmful sensory stimuli and triggers scratching to remove irritants from the skin. However, chronic ... -
Tuning the Circuit, Steering the Swarm: CASY-1 in Synaptic and Behavioral Modulation
Disruptions in neuromodulatory signaling are a hallmark of several neurodevelopmental and psychiatric disorders. However, the molecular mechanisms that fine-tune neuromodulation across circuits and behaviors remain poorly ... -
Behavioral and Neural bases of Subcomponents of the Attentional Blink
Attention enables us to select relevant stimuli for enhanced sensory processing and decision-making. Yet, our ability to pay attention is severely capacity limited. This limitation is clearly revealed when we seek to perform ... -
Investigating the neural basis of spatial attentional components with probabilistic and reward cueing
We are constantly inundated with an abundance of sensory information. “Attention” enables the selection of relevant information and filtering out irrelevant information, to guide adaptive behavior. While attention can be ... -
Theta modulated dynamics in the hippocampus and its inputs during spatial navigation
The hippocampus is crucial for spatial navigation and has been hypothesized to integrate sensory information and mnemonic cues about items and experiences within a spatial context to create memories. Area CA1 is the ... -
How does familiarity change visual object representations ?
Familiarity with something implies having a close acquaintance with that item, generally acquired over a period of time. Apart from single items, we have experienced getting familiar with a pair of items (like a mouse and ... -
Astroglial development as the basis for the effects of early life stress on adult depressive-like behavior
This thesis investigates the enduring effects of early-life stress, specifically maternal separation, on astroglial population and the subsequent behavioral outcomes in adult mice. While the persistent impact of early-life ... -
Investigating mechanisms underlying astrocytic involvement in depressive-like behavior and antidepressant action
Major Depressive disorder (MDD) is a complex, multifactorial psychiatric illness which affects over 20% of the population worldwide. Despite its prevalence, our understanding of its pathophysiology is severely limited, ... -
Decoding of Attention and Behavioral State Using Local Field Potentials
Visual attention has been shown to modulate perceptual behavior and neuronal activity. Early psychophysical studies on attention showed that the subjects detected a target presented at the attended location better (i.e., ... -
Characterization of Visual Stimulus-Induced Gamma Oscillations as Signatures of Mechanisms Underlying Healthy Aging and Disease
Neural oscillations are rhythmic fluctuations in the electrical activity recorded from the brain that convey important information about brain function. Gamma oscillations, which refer to the 30–80 Hz frequency range, are ... -
Qualitative similarities and differences between monkey and human visual perception
Animal models play a crucial role in helping neuroscientists unravel the computations supporting behaviour at the resolution of a single neuron in the brain. In vision science, the macaque monkey is the pre-eminent model ... -
Astrocytes regulate oligodendrocyte development and myelination in the mammalian brain
Oligodendrocytes (OLs), a type of glial cell, are the main myelinating cells of the mammalian central nervous system (CNS), enabling efficient saltatory mode of nerve conduction. On the other hand, astrocytes, another glial ... -
Characterization of Neuroprotective Reactive Astrocytes in the Aging Mammalian Brain
The brain manifests cognitive deficits in aging and becomes more vulnerable to neurodegeneration. Astrocytes play several critical roles in the brain, including synapse formation, maturation, elimination, and synaptic ... -
Parietal and prefrontal control of distinct components of attention
In this thesis, we investigate behavioural mechanisms and neural substrates of distinct components of endogenous spatial attention. Endogenous attention facilitates neural processing of the selected stimulus through one ... -
Differential Regulation of Calcium Dependent Phase Separation and Modular Assembly of Sap97/Hdlg Enriched Molecular Complexes
Recent studies over a few decades have changed the perspective of the molecular architecture of functional zones within synapses and other cell junctions. Observations in the last decade confirm Post Synaptic Density as ... -
Effect of Stimulus Normalization and Visual Attention at multiple scales of Neural Integration
The effect of visual attention on neural signals has been extensively studied using various techniques such as macaque neurophysiology and human electro/magneto encephalogram (EEG/MEG). Depending on the technique, different ... -
Role of calcium sensors in differential alignment of synaptic nanomachinery during neurotransmission
Some of the brain's most remarkable feats such as learning and memory, are thought to emerge from elementary properties of chemical synapses. The distinctive feature of these synapses is that the action potential in the ...
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