One difference between working memory and long-term memory is that ________.
1) the contents of working memory tend to be in the form of visual images, whereas the contents of long-term memory are often verbal and symbolic.
2) damage to the brain can disrupt working memory, but long-term memory seems not to be similarly vulnerable.
3) long-term memory has a limited capacity, whereas working memory does not.
4) the contents of working memory depend on the content of one's current thinking, but the contents of long-term memory do not.
