In the United States this developed into Groundhog's day. Think about the Mexican or Chinese food you might eat in an American restaurant. This is an example of which diffusion type? The celebration of St. Patrick's day in the United States is an example of which diffusion type? Stimulus diffusion is when an idea spreads to another culture or region and is then altered or changed in order to adapt to that culture and and example is how the world grew to love hip-hop music it started in inner american cities and slowly started to move outward and reach other parts of the world and along the way it gained fans of the new music style Another example would be the menus of McDonald's restaurants from around the world. Stimulus. Perfumes/Incense Sticks. For example, Islam has spread throughout the world, yet stayed strong in the Middle East, where it was founded. Stimulus, contagious, and hierarchical diffusion are all kinds of expansion diffusion. Stimulus. Stimulus diffusion can also apply to the more mundane as well. “Diffusion is the movement of particles from the area of higher concentration to lower concentration area, continuing until equilibrium is reached”. Stimulus diffusion is when an idea, principle or innovation underlying a phenomenon spreads to a small portion of a population, even though the phenomenon itself may not be diffused. An example of stimulus diffusion is the different types of food we eat. Stimulus diffusion has to do with expansion diffusion. An old European folk tradition involved having a badger or scared bear predict the length of winter. "Cat yoga," an exercise fad in the United States, is much different than the traditional meditative practice. It's the spread of an underlying principle, even though a specific characteristic fails to diffuse. The defining quality of diffusion is that it takes place because the diffusing substance exists in a higher concentration in one place and a lower concentration in another. An example is provided for students. Next, students will access McDonald's International website that links them to independent McDonald's webpages. Let’s check some notable examples of diffusion that occurs in our daily life. The textbook definition of diffusion is the movement of molecules or particles from an area of higher concentration to an area of lower concentration, continuing until equilibrium is reached. Hierarchical. Here, they will flip through menus and try to explain why they would be examples of contagious, stimulus, or hierarchical diffusion. 1. Expansion diffusion is when innovations spread to new places while staying strong in their original locations. This typically occurs when, due to cultural differences, certain aspects of a phenomenon become diffused as opposed to the phenomenon as a whole. I have FIVE illustrated textbook pages on the topic in PDF format.