Can Sounds Trigger Memory?

After presenting what I have learned, a "spectator" asked me about the relationship between sounds and memory. This struck a sense of curiosity in me. On a desperate search to find the answer, I stumbled upon an article all about memory. After reading the article, I fount that there is a section all about things you see, hear and thing that scare you and how they trigger memories. The article is here. There is a part of our brain called sensory cortex. There are two parts of the sensory cortex: the primary cortex and the secondary cortex. The secondary cortex determines the pitch of a noise and different musical noises. An experiment was done, training rats to associate a certain sound with an electric shock. The rats froze in fear when they heard the noise. Then, the scientists put a lesion in the rats secondary cortex, and the rat didn't recognize the sound as it did before. What does this mean to my research? It means that there is an emotional association with sound and this takes place in the secondary sensory cortex. Can sounds trigger memory? Yes. Why? Because the brain associates the sound with your emotions, fear especially. Works cited: Rettner, Rachael. "Brain's Link Between Sounds, Smells and Memory Revealed." Live Science. 5 Aug. 2010. Web. 18 Mar. 2011.