The cognitive approach focuses on how internal mental processes impact behaviour. It states that humans are information processors, with cognitive processes based on transforming, storing, and retrieving information from memory. All models of cognitive processes, for example the multi-store model of memory, assume mental processes follow a clear sequence. The cognitive approach takes into account the role of the schema. Our schema allow us to process lots of information quickly, preventing us from being overwhelmed by external stimuli, but they can distort our interpretations of sensory information, leading to perceptual errors such as prejudice. Cognitive psychologists also believe that mediational processes occur between stimulus and response. They include attention, retention, repetition, and motivation.