Abstract: This paper presented an experimental study on Collins' semantic hierar-chical network model under the method of semantic verification. The resultsshowed that: (1) Collins semantic hierarchical netword model cannot be pro-perly applied to the study of information processing in the human brain. (2)the degree of the subjects familiarity with the objects represented by the sub-jects of the sentence to be judged by them is an important factor in determi-ning the time acquired in semantic verification. (3) The time for the subjectsto retrieve the attributes of concept cannot be entirely determined by the loca-tion of the attributes.

Key words: semantic hierarchical network model, distance of network, sentence of category, sentence of attribute, degree of familiarity