What type of tissue processes information in the head of an animals with bilateral symmetry?

In animals with bilateral symmetry, the tissue that processes information in the head is primarily nervous tissue. This tissue forms the brain and nerve centers, which are responsible for processing sensory information and coordinating responses. Neurons, the main cells in nervous tissue, transmit signals throughout the body, enabling complex behaviors and responses to the environment. Additionally, glial cells support and protect neurons, playing a crucial role in maintaining nervous system function.