Table 1. Experimental conditions.

Task	Item 1	Item 2	Response button	Lexical categorization focus	Sustained attention condition	Example
“press A for each pair of words, B in any other case”	wwpp	wpwp	ABBB	WWWW	HoldHoldReleaseRelease	ACTEUR – LIONNELISTE – DAEOURNEAINE – REVEILIUSTE – TIATUE
“press A for each pair of pseudowords, B in any other case”	wwpp	wpwp	BBBA	PPPP	ReleaseReleaseHoldHold	NEVEU – RACINECANAL – RERNESFURE – FABLEMEADI – SGINAL

Response sides and tasks were counterbalanced across blocks and participants (w = word and p = pseudoword). Translations: Acteur – ‘Actor’; Lionne – ‘lioness’, liste – ‘list’, reveil – ‘alarmclock’, neveu – ‘nephew’, racine – ‘root’, canal – ‘channel’, fable – ‘legend’.