Disconnection syndrome refers to the effects of lesions of the communication pathways in the brain. Such lesions may be due to tumor, stroke, surgical intervention, and other pertinent factors. The neurological symptoms include inability to understand usual language, difficulty to perform routine movements, inability to speak comprehensively, difficulties in recognizing usual stimuli, and the inability to read.
One usual example of disconnection is “split-brain” which is caused by a lesion on the corpus callosum, the bridge between the right and left hemispheres. Individuals with split-brain syndrome cannot use both hemispheres interdependently; hence, they have difficulties concerning speech ad object recognition.