This pathway includes the sylvian parietotemporal, inferior frontal gyrus, anterior insula, and premotor cortex. Substantia innominata connects the thalamus, temporal lobe, and insula. The anterior insula is part of the primary gustatory cortex. In addition, the anterior insula itself projects to the amygdala. The posterior part of the insula is formed by a long gyrus. Electrical stimulation of the insula in the human elicit gustatory sensations. Activation in the insula also takes place when exposed to gustatory imagery. Lesions of the insula are associated with decreased empathy capacity. This correlates with other known emotional roles of the insula. Functional imaging studies show activation of the insula during audio-visual integration tasks. Other internal sensations processed by the insula include stomach or abdominal distension. The name derives from Classical Latin "insula maior", "larger island". In this period, the "sacra insula" acquired a new appearance. The study also observed increased activity in the insula (which is associated with sad emotions). The Genoese troops, led by noblemen de Insula and Avvocato, set sail in July 1097.