Despite the seemingly simple mapping between adjectives and perceptual properties (e.g., color, texture), preschool children have difficulty establishing the appropriate extension of novel adjectives. When children hear a novel adjective applied to an individual object, they successfully extend the adjective to other members of the same object…

Deaf children whose hearing losses prevent them from accessing spoken language and whose hearing parents have not exposed them to sign language develop gesture systems, called "homesigns", which have many of the properties of natural language--the so-called resilient properties of language. We explored the resilience of structure built…

Individuals' mental maps of the world are highly misrepresentative of the actual world. Availability in memory partly explains the reasons for this misrepresentation. When asked to place the 50 states in their correct locations, students have difficulty with states not in close proximity to their own because of availability, such that the…