Visible Persistence of Single-Transient Random Dot Patterns: Spatial Parameters Affect the Duration of Fading Percepts

Giacomo Balla: A Painter in the Context of Neuroscience

Giacomo Balla, a famous Italian Futurist painter, was a great observer of both human motion and emotion. He showed a profound interest toward neurophysiological and neurological sciences. During his search of his personal artistic style, he attended the lessons of Cesare Lombroso, a criminal anthropologist, who at the time was also professor of neurology at the University of Turin. Some years later, he became a close friend of Doctor Francesco Ghilarducci, who had spent a few years in Paris at Jean-Martin Charcot's "School." Balla spent most of his career studying the dynamics of movement and speed. Some of his most famous paintings were inspired by photographic studies on the locomotor system, such as those of the French physiologist Étienne-Jules Marey. His personal painting style reveals his deep interest in neurosciences. We hereby illustrate the role of some of Giacomo Balla's paintings as historical records of the neuroscience environment at the turn of the 20th century.

Visual dot interaction with short-term memory

Aim: Many neurodegenerative diseases have a memory component. Brain structures related to memory are affected by environmental stimuli, and it is difficult to dissociate effects of all behavior of neurons. Materials & methods: Here, visual cortex of mice was stimulated with gratings and dot, and an observation of neuronal activity before and after was made. Bandwidth, firing rate and orientation selectivity index were evaluated. Results: A primary communication between primary visual cortex and short-term memory appeared to show an interesting path to train cognitive circuitry and investigate the basics mechanisms of the neuronal learning. The findings also suggested the interplay between primary visual cortex and short-term plasticity. Conclusion: The properties inside a visual target shape the perception and affect the basic encoding. Using visual cortex, it may be possible to train the memory and improve the recovery of people with cognitive disabilities or memory deficit.