Can You Smell That?

Often, we do not realize just how important our taste and smell senses are to every day life. We go about our day and do the normal human thing. We sleep, eat, shower, get dressed, go to school, work, etc. What if our sense of taste and smell were taken away? How would it change these every day routines? If there were a house fire while we were sleeping and we could not smell the smoke, what would happen? What if we could not taste or smell the food we were eating? What if we could not smell if our bodies were clean when we showered? As a nurse, what if I could not smell a foul odor in regards to urine or

In previous studies, Frank and Byram’s article suggest that taste and smell interactions are dependent on taste and odor. In their experiments, they gave subjects strawberry

Activators of Adenylate Cyclase would cause production of cAMP, which is a second messenger. This would amplify the signal and increase the extent of the scent.

Senses airborne chemical molecules • Related to memories & emotions • Consists of 10 million rods embedded in the olfactory epithelium – responding to different chemicals

Smells connection to emotion was also discussed, it turned out to be molecules with receptor signals capable of triggering memory through the olfactory part of our brain and the hippocampus, the site of memory

Ani Lui explained the importance of smell and how we can use it to fix are problems in life. “Nothing is more memorable than a smell. One scent can be unexpected, momentary, and fleeting, yet conjure up a childhood summer beside a lake in the mountains” (Diane Ackerman).On Ted Talk, Lui talked about how smell can be a huge resource to our everyday life.The show was called “Smelfes, and other experiments in synthetic biology”. She showed pictures of fruits like strawberries that could grow its own fruit. Ani Lui is from EIT lab, a designer. She sorts out science fiction and science fact. At their lab, they study artificial life and objects. Back in the 19-century women would put an apple under there underarm. If the man ate the apple that meant

Sensation and Perception are somethings we use every day in our lives. Sensation is described as using information outside of our bodies, to bring them in, and into the brain. Its a process. Sensory organs, then sensory receptors convert the smell to neural impulses and then bring them from the

Do the test smell and food, then no smell and food, then only food. Continue with these steps until experiment is finished. The results for cinnamon scent and food 11/12 correct, for cinnamon with no scent and food 12/12 correct, for cinnamon with food 12/12 correct. The results for mint scent and food 8/12 correct, for mint no scent and food 12/12 correct, for mint with food 12/12 correct. The results for vanilla scent and food 12/12 correct, for vanilla no scent and food 12/12 correct, for vanilla with food 12/12 correct. The predicted results were that with scent and food that the volunteers wouldn’t be able to still taste. What could be done differently if this project was performed again is having one volunteer at a time doing the test. Another thing is give the volunteer a glass of water to clean the mouth from any taste when tasting something new. Experimental error were not taking the volunteers smell away completely. The hypothesis, if the smell was cinnamon then the taste of ketchup will decrease. The hypothesis was not supported. When comparing the foods with smell against the foods without smell the cinnamon had a 9% difference, mint had a 40%

Although an individual glomerulus may be activated by several odors, the relative levels of activation of several glomeruli differ between odorants. As the concentration of the odorant increases, more glomeruli are recruited to respond; however, the relative pattern of activation is usually maintained for each odorant. Dr. Wachowiak also showed that there is a topographical map in the olfactory bulb such that odorants belonging to a certain class of molecules tend to activate glomeruli in the same area of the bulb, and this map is consistent across animals. Thus, it is possible to study the response to many odor molecules in a large number of animals and collapse the data across subjects to obtain more statistical power. In conclusion, this is an interesting technique that can be used to understand the detailed mechanisms of first-order olfactory perception in live animals. Dr. Wachowiak hopes to continue this research by conducting psychophysical experiments to determine how well the mice discriminate between odors, using genetically encoded probes of neural activity to selectively image certain populations of glomeruli, and studying further steps of processing within the

Ten cups are an ideal amount of cups to give to the model but there should be the same amount of milk and coffee in each cup.

Our awareness of a stimuli illustrates our absolute threshold which is the minimal stimulation necessary to detect a stimulus, at least 50 percent of the time. I have decided to test the absolute threshold for smell. I am predicting that one drop of the essential oil compound chill pill can be detected in a 12 foot by 18 foot room.

Discrimination tests offer the sensory practitioner the opportunity to answer speedy yes or no questions regarding sample differences. In any case, the method used ought to be appropriate for the situation at hand. In practice, it is not possible for the sensory practitioner to know or applied all the methods available in their day to day practice. An attempt has been made in this experiment to cover as numerous of the commonly known and used methods and highlight both their theoretical and practical applications and limitations to aid in the choices as to which method to utilize in each situation. Generally, some methods have practical applications for all situations when the attribute of intrigued is unknown, for example the triangle test