Additional studies have shown a relationship between memorization and activation in the gyrus. When subjects were tasked with pairing abstract nouns with either visual imagery or sentence generation, many areas in the occipital lobe – namely the lingual gyrus – showed task-selective memory effects. This effect was primarily linked to visual imagery, as there were no significant effects associated with sentence generation. This link between memory and the gyrus extends to retrieval fluency in children, as well. Studies have shown elevated signals in the lingual gyrus when subjects were tasked with retrieval of facts while problem solving. Control samples show the activation is not linked to the problem solving itself, rather the recollection. This suggests a potential link between the lingual gyrus and hippocampal regions in the brain. Furthermore, the gyrus is potentially linked to the amygdala. Gyrus activation was observed when subjects were tasked with verbalizing high-emotion words in contrast to neutral-emotion words. A second study linked the regions with high-emotion images. When subjects were shown emotional images, the amygdala and lingual gyrus both activated significantly more when compared to neutral-emotion images.