1. Olfactory Stimulation of Monkeys
Kevin Campbell
Sarah Kolpin
Wyatt Potter
Heather Shaner

2. Overview Problem Statement Background Information
Design Objectives and Criteria
Preliminary Design Alternatives
Evaluation of Design Alternatives
Final Design
Conclusion and Future Plans

3. Problem Statement
This device is to provide a taste or smell stimulant to monkeys to investigate the effects of age on olafactory stimulation. The device should provide a two choices for the monkey and then supply a reward for the correct selection.

4. Background Information
Primates are valuable to research
Close physiological relationship with humans
Results of this research could lead to more understanding of human brain and taste/smell interactions  
Extensive training of the monkeys is necessary to effectively interact with experimental apparatus

5. Background Information
“Two-bottle preference test” provides qualitative information but limited to preference
“Multiple-choice discrimination” simulates natural foraging behavior to determine olfactory performance in monkeys when multiple choices are presented simultaneously.
This experiment is meant to give researchers an idea of a monkey’s ability to discriminate between threshold of scents

6. Design Objectives and Criteria
Apparatus easily convertable between tastants and smells
Present monkey with two distinct options and allow monkey to choose
Both options must clearly be separate and correlate to a specific stimuli
One option will contain no smell or taste stimulate – a blank
Once chosen choice should be final
Reward given for correct choice
Apparatus readily movable from cage to cage
The replacement of stimuli between tests must be out of sight and smell range of ALL monkeys near by.

11. Preliminary Design Alternatives
Electrical Model
Mechanical Model #1
Mechanical Model #2

12. Electrical Model

13. Mechanical Model #1

14. Mechanical Model #2

15. Door locking mechanism

16. Evaluation of Design Alternative

17. Final Design
Mechanical Model #2

18. Conclusion and Future Plans
Mechanical model chosen to pursue due to simplicity and client desires
Work on adding a blinking light that is activated upon correct choice of stimuli
This idea could help shorten the training period for the monkeys
Shield to hide operators setup from monkeys