This document discusses theories of cognition and perception across cultures. It describes two stances from the 20th century that proposed cognition is universal, based on behaviorism and the idea that the human mind functions like a computer. However, three major challenges were brought against this view: Wilhelm Wundt's cultural psychology argued culture affects cognition; Vygotsky proposed cognition develops within a cultural context using tools unique to that culture; and Whorf's linguistic relativity suggested language shapes thought. The document examines how cognition of color, number, reasoning and perception may vary cross-culturally due to linguistic and environmental differences.