In the study of decision making, emphasis is placed on different forms of perceptual integration, while the influence of other factors, such as memory, is ignored. In addition, it is believed that the information underlying decision making is carried in the rate of the neuronal response, while its variability is considered unspecific. Here we studied the influence of recent experience on motor decision making by analyzing the activity of neurons in the dorsal premotor area of two monkeys performing a countermanding arm task. We observe that the across-trial variability of the neural response strongly correlates with trial history-dependent changes in reaction time. Using a theoretical model of decision making, we show that a trial history-monitoring signal can explain the observed behavioral and neural modulation. Our study reveals that, in the neural processes that culminate in motor plan maturation, the evidence provided by perception and memory is reflected in mean rate and variance respectively

Neural variability in premotor cortex is modulated by trial history and predicts behavioral performance / Marcos, Encarni; Pani, Pierpaolo; Brunamonti, Emiliano; Deco, Gustavo; Ferraina, Stefano; Verschure, Paul. - In: NEURON. - ISSN 0896-6273. - STAMPA. - 78:2(2013), pp. 249-255. [10.1016/j.neuron.2013.02.006]

Neural variability in premotor cortex is modulated by trial history and predicts behavioral performance

Pierpaolo Pani
Secondo
;
Emiliano Brunamonti;Stefano Ferraina;
2013

Abstract

In the study of decision making, emphasis is placed on different forms of perceptual integration, while the influence of other factors, such as memory, is ignored. In addition, it is believed that the information underlying decision making is carried in the rate of the neuronal response, while its variability is considered unspecific. Here we studied the influence of recent experience on motor decision making by analyzing the activity of neurons in the dorsal premotor area of two monkeys performing a countermanding arm task. We observe that the across-trial variability of the neural response strongly correlates with trial history-dependent changes in reaction time. Using a theoretical model of decision making, we show that a trial history-monitoring signal can explain the observed behavioral and neural modulation. Our study reveals that, in the neural processes that culminate in motor plan maturation, the evidence provided by perception and memory is reflected in mean rate and variance respectively
2013
Action Potentials; Animals; Computer Simulation; Cues; Decision Making; Macaca mulatta; Male; Motor Cortex; Neurons; Neuropsychological Tests; Photic Stimulation; Psychomotor Performance; Reaction Time; Models, Neurological; Neuroscience (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Neural variability in premotor cortex is modulated by trial history and predicts behavioral performance / Marcos, Encarni; Pani, Pierpaolo; Brunamonti, Emiliano; Deco, Gustavo; Ferraina, Stefano; Verschure, Paul. - In: NEURON. - ISSN 0896-6273. - STAMPA. - 78:2(2013), pp. 249-255. [10.1016/j.neuron.2013.02.006]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/508838
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