Comparative analysis of sensor noise for target detection in dragonfly eyes. Dragonflies hunt tiny prey in the low-light conditions of late dusk, a signal-to-noise problem that challenges any engineered system. Using a comparative approach across dragonfly species, we aim to use novel optical and physiological measures to determine how sensors with noise underlie target-detection, in varying scene brightness. The project outcomes will be a comparative characterisation of signal-to-noise measures ....Comparative analysis of sensor noise for target detection in dragonfly eyes. Dragonflies hunt tiny prey in the low-light conditions of late dusk, a signal-to-noise problem that challenges any engineered system. Using a comparative approach across dragonfly species, we aim to use novel optical and physiological measures to determine how sensors with noise underlie target-detection, in varying scene brightness. The project outcomes will be a comparative characterisation of signal-to-noise measures of dragonfly eye optics (including eye size) and early sensory neurons. We will match detection thresholds with downstream target-detecting neurons and dragonfly behaviour. This will provide insight into signal detection, which is a ubiquitous problem across information processing, computer vision and autonomous systems.Read moreRead less
Neural noise in human cognitive ageing and reserve. Age-related increases in neural noise degrade information transfer in the brain and lead to diminished cognitive function. Yet with cognitive reserve, some people are able to maintain healthy functioning well into their later years. This project aims to investigate the effects of neural noise on brain connectivity, cognitive performance and reserve, advancing breakthrough work on the neural physiology of healthy cognitive ageing and malleabilit ....Neural noise in human cognitive ageing and reserve. Age-related increases in neural noise degrade information transfer in the brain and lead to diminished cognitive function. Yet with cognitive reserve, some people are able to maintain healthy functioning well into their later years. This project aims to investigate the effects of neural noise on brain connectivity, cognitive performance and reserve, advancing breakthrough work on the neural physiology of healthy cognitive ageing and malleability of neural noise. This will be delivered by novel combinations of electrophysiology, neuroimaging and non-invasive brain stimulation. Benefits extend from developing neural markers for measuring cognitive reserve to new strategies for building resilience to age-related cognitive decline.Read moreRead less