The concept of sensory marketing can be understood as the method use by marketers to impact the senses of the people ( taste, smell, visual, touch etc.). An example of this can be the aura, smell and the ambiance which delights you when you enter a restaurant ( remember it is the effect of senses which is making your experience in the restaurant a delight).
On the other hand Subliminal Marketing targets a persons conscious level below his/her threshold level i.e. your brain will be registering information whereas your ‘senses’ might not had register it at all !!!!