You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The decerebrate rigidity is characterised by all of the following EXCEPT and explain in detail?
Decerebrate rigidity results from a section between the superior and inferior colliculus When a mid collicular section is made (coex removed), coical inhibitory influences on these areas are removed. Thus, there intrinsic firing is unchecked now, leading to excess facilitation of gamma motor neuron discharge and excessive activity of stretch reflexes. The resulting rigidity, called decerebrate rigidity, is mostly seen in the extensor or postural muscle groups. The rigidity in extensors causes a posture of arching backward - opisthotonus position.