Figure 3
Sequence of events in each 30 s trial as function of time. Custard presentation at 60 g/min (striped bar, maximum 21 s, subject-terminated), screen instructions (black bars), a 400 Hz beep (gray bar) and one of three aroma conditions (no aroma (1), white bar; 10% aroma concentration (weak) (2); light gray bar; 100% aroma concentration (stronger) (3), dark gray bar).