Another criticism of behaviourism, mechanistic means we merely respond to our environment, having little control over it. Behaviourism favours an ABC model of behaviour viz. Antecedent - Behaviour - Consequences . The biological approach can also be accused as being mechanistic. It sees our thoughts, feelings, and behaviours as being driven by neurons, hormones etc. It underplays the influence of cognitions, our environment, and our social world on our behaviours.