There are many factors that can affect a learner's success in acquiring a second language. These include individual differences like intelligence, aptitude, age, and attitude. Affective factors such as anxiety, personality traits, motivation, and learner preferences also influence language learning. Motivation can be intrinsic or extrinsic, and integrative or instrumental. Learner preferences include learning styles which may be visual, auditory, tactile, kinesthetic, or haptic. Previous beliefs and strategies from prior learning experiences also impact second language acquisition.