An otoacoustic emission (OAE) is a sound which is generated from within the inner ear. Having been predicted by Thomas Gold in 1948, its existence was first demonstrated experimentally by David Kemp in 1978 and otoacoustic emissions have since been shown to arise through a number of different cellular and mechanical causes within the inner ear. Studies have shown that OAEs disappear after the inner ear has been damaged, so OAEs are often used in the laboratory and the clinic as a measure of inner ear health.
I was lucky enough to come in contact with Sheila after going through numerous babysitters/child care providers who either my kids did not like or the babysitter/child care provider could no longer care for my children. After bouncing around from provider to provider, I was relieved to find Angel Camp where my girls are thrilled about spending each day there. They are very well taken care of, happy, and I have no worries about my children during the day. She keeps in good contact with me so I always know the status of my children and how their day is going. It means the world to me knowing my children are in good hands.
In 2009, Stephen Beeby of The University of Southampton led research into utilizing otoacoustic emissions for biometric identification. Devices equipped with a microphone could detect these subsonic emissions and potentially identify an individual, thereby providing access to the device, without the need of a traditional password. It is speculated, however, that colds, medication, trimming one's ear hair, or recording and playing back a signal to the microphone could subvert the identification process.
It has been found that distortion product otoacoustic emissions (DPOAE’s) have provided the most information for detecting mild hearing loss in high frequencies when compared to transient evoked otoacoustic emissions (TEOAE). This is an indication that DPOAE’s can help with detecting an early onset of noise-induced hearing loss. A study measuring audiometric thresholds and DPOAEs among individuals in the military showed that there was a decrease in DPOAEs after noise exposure, but did not show a shift in audiometric threshold. This supports OAEs as predicting early signs of noise damage.
We recognize that there are good reasons to make changes in early childhood education and care (ECEC) in Ontario. But we believe that these must be based on the best available evidence about what is of most benefit to children and families; we argue that these proposed changes are not. Additionally, we suggest that changes in ECEC in Ontario will continue to have negative effects if they continue to be “piecemeal”.
In conjunction with audiometric testing, OAE testing can be completed to determine changes in the responses. Studies have found that exposure to noise can cause a decline in OAE responses. In a study, industrial workers who were exposed to 84.5 dBA of noise were compared to workers who were exposed to 53.2 dBA of noise by considering hearing thresholds and OAEs before and after 5 days of work. This study revealed that hearing thresholds and OAE results were significantly lower among the workers who were exposed to higher levels of noise.
My licensed home childcare will incorporate the experience and knowledge I have gained while working 13 years as a preschool teacher most of which was at a NAEYC accredited 4 Star Qualistar rated program. I am CPR/First Aid certified. I have a fenced in backyard and there is a park nearby. I absolutely LOVE spending my days watching children learn, grow, and experience the world around them, to me there is no other job as rewarding!