A man when touches a hot object, the sensation of heat is not perceived. Signal reaches the thalamus but is not transmitted to postcentral gyrus. Which of the following is responsible for this?

Third order neuron (teiary neuron) does not transmit the signal from thalamus to the cerebral coex (Postcentral gyrus) in this case. Teiary neuron acts as a pathway between thalamus and the postcentral gyrus. Second-order neurons project to the thalamus and teiary neuron project to postcentral gyrus.