Facultade de Fisioterapia

Spatio-temporal adaptive penalized splines with application to Neuroscience

Rodríguez Álvarez, María Xosé; Durbán, M.; Lee, D-J.; Eilers, P.
Abstract:
Data analysed here derive from experiments conducted to study neurons’ activity in the visual cortex of behaving monkeys. We consider a spatio-temporal adaptive penalized spline (P-spline) approach for modelling the firing rate of visual neurons. To the best of our knowledge, this is the first attempt in the statistical literature for locally adaptive smoothing in three dimensions. Estimation is based on the Separation of Overlapping Penalties (SOP) algorithm, which provides the stability and speed we look for. Keywords: Visual neuron; Visual receptive field; Adaptive Smoothing; P-splines; SOP algorithm.
Year:
2016
Type of Publication:
Proceedings
Book:
Proceedings of the 31st International Workshop on Statistical Modelling
Hits: 1205