Classical conditioning and operant conditioning operate through fundamentally different learning mechanisms, as supported by comparative behavioral and neural circuit literature.
The claim states that classical conditioning and operant conditioning operate through different mechanisms. This is a standard, well-established psychological and neuroscientific distinction (associative learning types). Papers such as [3] and [5] treat classical and operant conditioning as distinct forms of learning with different operational principles and circuit implementations, often integrating them precisely because they are separate. No papers refute this distinction. Therefore, the verdict is SUPPORTED.