Not getting enough sleep could be linked with triggering symptoms among people with schizophrenia, suggests a new animal study published in the journal Neuron. People with schizophrenia frequently experience sleep problems. To find the exact effect disrupted sleep has on a brain with schizophrenia, researchers from the University of Bristol and the Lilly Centre for Cognitive Neuroscience examined brain wave activity of sleeping rats that were engineered to have schizophrenia.