Why do we need the biological level in addition to the cognitive level?

• A. Sometimes the biological structure influences behaviour in ways the information processing perspective cannot explain
• B. The brain has no influence on behavior
• C. Biology completely determines behavior
• D. The chemical level is irrelevant to behavior

Answer: (A)

Understanding behavior requires both the biological and cognitive levels of analysis. The cognitive (information processing) view explains how mental representations are formed and manipulated, but the brain’s biological structure—neural circuits, specific brain regions, and neurochemical processes—can shape or constrain those processes in ways the cognitive account alone cannot explain. For example, brain lesions or changes in neurotransmitter systems can alter memory, attention, or decision making in ways a purely abstract model wouldn’t predict. Drugs that modify dopamine or serotonin can change motivation and risk-taking even when the high-level strategy stays the same. So, incorporating the biological level helps explain why certain behaviors occur and how cognitive processes operate within the brain’s hardware. The other statements misrepresent the relationship by denying brain influence, claiming biology completely determines behavior, or dismissing chemical processes.