Читать книгу Practical Procedures in Dental Occlusion - Ziad Al-Ani - Страница 16

This process needs sensory input for the CPGs and this comes from the periodontal mechanoreceptors (PDMRs), muscles, bones, TMJ and soft tissues. Other inputs from the higher centres of the brain can also affect the basic output from the CPG. The output through the motor fibres is relayed in the descending pathway to the muscles to apply forces to break food down. This process is constant and if we bite on something hard which we are not expecting then a reflex arc is created, i.e. jaw opening reflex (Figure 2.1).

Most foods that we are used to eating do not require attention, but when we try a new food the higher order brain centres are involved as we investigate (attention is required) this new substance in regard to texture and taste and a decision is made whether we will eat this again. This is feedforward learning. Age and types of food can also modulate mastication activity as stated by Peyron et al. (2004).