Conversion of sensory signals into perceptual decisions

► Somatosensory stimuli are represented in parietal, premotor and prefrontal cortices. ► Premotor and prefrontal cortices maintain short-term memory of a vibrotactile stimulus. ► Decision-related activity emerges in parietal, premotor and prefrontal cortices. ► Stimuli, decisions and motor plans are coded by two populations with opposite tuning.