Perky's imagery study (1910) had participants describe images of objects that were dimly projected onto a screen. the significance of perky's results was that:

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow

sorry i tried to but i didn’t get it