Аннотация:It was found that verbal memory span (operational component) is directly related to the asymmetry between left and right hippocampus (r = 0.5659, p = 0.0093). Furthermore, verbal operational block predominantly relates to the body of hippocampus and less to its head and tail (r=0.6822, p = 0.0009): the bigger the volume of the left hippocampal body as compared to the right one the better verbal memory performance.
Regulatory aspect of nonverbal memory showed positive correlations with head volume of the right hippocampus (r = 0.5074, p = 0.0224) and with the volume of the left and right heads together (r = 0.4670, p = 0.0379).
Activation block for the nonverbal memory tasks positively correlated with the volume of the right (r = 0.5203, p = 0.0187) and the left (r = 0.4028, p = 0.0702) tails as well as with their summed volume (r = 0.5456, p = 0.0128)
Taken together these findings suggest that the anterior part of the hippocampus deals with regulation within memory processes. Its middle part that shares pathways with the middle temporal lobe might contribute to the memory span and efficacy regardless of type of material (verbal and nonverbal) while the tail of the hippocampus might be sensitive to the general level of activation and arousal during encoding.