Dernier numéro de Survey Magazine

External stimuli

External stimuli are means introduced in group interviews to encourage a discussion that generates reactions on participants on the topics concerned.
These external stimuli can be achieved by product prototypes, spots, images, advertisement… These means are used to cope with the difficulty to verbalize the elements to be tested.
In order to evaluate the impact of external stimuli, neurosciences provide today exceptional tools to interpret our behaviors and our body reactions.