Beyond Task 1 difficulty:: The duration of T1 encoding modulates the attentional blink

Manipulations of Task 1 difficulty in the attentional blink paradigm can have minimal effects on performance of a subsequent visual encoding task, when Task 1 difficulty is thought of as a form of data limitation ( e. g., by masking T1 more or less effectively) using mixed trials ( e. g., McLaughlin, Shore, & Klein, 2001). In this work we show that a different form of Task 1 difficulty, namely the difficulty of organizing T1 as a representation in STM, has a large impact on accuracy in Task 2, even when the different levels of Task 1 difficulty are intermixed from trial to trial. The results support the Central Interference Theory of the attentional blink by showing that the time taken for central processing of T1 has a direct impact on performance in Task 2.