Dr Shalmali Joshi

Senior Research Associate - Navigating Neural Overload: Decoding Cortical Hyperexcitability and Aberrant Perceptions in the Visual Cortex

Research Overview

Our sense of being a stable and coherent ¡®self’ is a fundamental part of human self-consciousness. Stable self-consciousness is mediated by the successful integration of multiple sources of sensory information. However, these psychological processes are not error proof, can break down, and can underlie striking distortions/hallucinations in self-consciousness. Such instances are now known to occur in neurotypical (i.e., non-clinical) populations ¨C placing them firmly on the mainstream scientific agenda. What is interesting is that because of the spontaneity of these hallucinations/dissociative- like experiences, predominant theories suggest that the entire healthy population falls on a spectrum (based on frequency and intensity of these occurrences) and is referred to as the ¡®continuum’ theory.

My research area focusses on exploring the underlying neural and sensory breakdown that occurs in individuals that are susceptible to these dissociative- like experiences, by studying autonomic response to body-specific aversive stimuli and relating this to the ¡®continuum’ theory. To test this, the overall aim in my thesis is to tackle accounts of emotional ¡®numbing’ that is a common report of dissociation. This will help further understand this relatively novel research area and provide explanation to the neural network that drives these experiences in the sub-clinical population. Moreover, findings from this research could then be applied to assess impacts of emotional processing as a result of dissociative experiences, in terms of different aspects of developmental and criminal psychology, artificial intelligence research or borderline personality disorders.