A distinction is made between short-term working memory, which is capacity limited, and long-term working memory, which is available to experts in their domain of expertise. Text comprehension is viewed as expert performance. The role of long-term working memory in text comprehension is analyzed, with an emphasis on the activation of relevant knowledge during comprehension. Latent semantic analysis used to model knowledge activation in text comprehension.

Key words: long-term working memory, text comprehension