Reading focus
Syllabus: How Does Experience Change Behavior?
Evaluate the definition as an argument: ask what it includes, what it excludes, and whether it prejudges the mechanism.
Why you’re reading it. Separate identifying an effect of experience from explaining how that effect occurs.
A question to consider. The volunteer works faster on their second day. What comparison would help establish learning rather than greater motivation or an easier task?
Why this reading
Before explaining learning, we need to say what would count as an instance of it. The authors propose a definition that separates an effect of experience from a theory about the process producing that effect.
Before you read
A functional definition identifies a phenomenon through relations between behavior and environmental conditions. A mechanistic explanation proposes how it happens. Ontogenetic means within an organism’s lifetime. Here, adaptation does not imply that a change is beneficial or consciously intended.
Read for
- Identify the three ingredients in the proposed definition: behavioral change, environmental regularities, and a causal connection between them.
- Examine how the authors handle apparent exceptions, including learning that becomes visible only under later test conditions.
- Follow their argument that defining an effect through a proposed mental mechanism can make it harder to compare competing explanations.
Consider afterwards
- Someone becomes quieter over a week. What observations would distinguish learning from fatigue, illness, or a change in the opportunity to speak? Would the proposed definition settle which learning mechanism was involved?
Editorial context
This is an argued definition, not an agreed checklist that ends debate about learning. The authors explicitly defend its usefulness for cognitive research. Assess both the clarity it gains and the difficulty of establishing the required causal relation; a functional definition does not itself supply that evidence.