Primacy and regency in recognition of odours and recall of odour names

This study examined the serial position curve for recognition of odours and recall of odour names, both with and without instructions for verbal elaboration. Participants were allocated to one of two experimental conditions, either with instructions to rehearse verbally the stimuli or with no elaboration instructions. After presentation of 17 odours, either recognition or free recall of the odours was tested immediately after presentation of the last target odour. Recognition showed evidence of primacy for the verbal elaboration condition and recency for both instruction conditions. Recall of odour names showed evidence of primacy for the verbal elaboration conditions and recency for both conditions. Instructions to verbalize did not significantly affect over-all performance for either test condition.