“…Experimental ( Nienborg and Cumming, 2009 ; Cohen and Maunsell, 2009a ; Bondy et al, 2018 ), and theoretical ( Lee and Mumford, 2003 ; Maunsell and Treue, 2006 ; Wimmer et al, 2015 ; Haefner et al, 2016 ; Ecker et al, 2016 ) work indicates that top-down modulations of sensory responses play an important role in the perceptual decision-making process. In particular, feedback signals are expected to show cell-specific stimulus dependencies associated with the tuning properties ( Lange and Haefner, 2017 ). Different coding theories attribute different roles to the feedback signals, for example, conveying predictive errors ( Rao and Ballard, 1999 ) or prior information for probabilistic inference ( Lee and Mumford, 2003 ; Fiser et al, 2010 ; Haefner et al, 2016 ; Tajima et al, 2016 ; Bányai and Orbán, 2019 , Bányai et al, 2019 ; Lange and Haefner, 2020 ).…”