1. Psycholinguistics is the study of language and the mind, exploring how individuals acquire, comprehend, produce, and store language.
2. Evidence for psycholinguistics comes from observation of spontaneous utterances and designed experiments, helping to understand how children learn from mistakes and recognize words.
3. The acquisition of language is biologically driven, following patterns of maturation, and is learned from an individual's social surroundings through interactions with others from a young age.