关键词: <p>导盲犬, 恐惧性测试, 心率, 注意力, 主动探索</p>

Abstract: Abstract: Objective To explore the heart rate reactions of guide dogs in the fear test，and to provide effective behavioral and physiological basis for early identify of dogs best suitable to guide dog work． Method 28 guide dogs and 32 eliminated dogs which were provided by Chinese Guide Dog Training Centre of Dalian were tested by fear test． The heart rate reactions of 16 guide dogs and 16 eliminated dogs were recorded in the test． The score of “Attention”，“Active Exploration”in fear test，and the heart rate reactions were analyzed． Ｒesult The score of “Attention”and “Active Exploration”of guide dogs were significantly higher than those of eliminated dogs ( “Attention”: in guide dog group was 3. 32 ± 0. 18 and in eliminated dog group was 2. 34 ± 0. 18，P ＜ 0. 01; “Active Exploration”: in guide dog group was 3. 32 ± 0. 24 and in eliminated dog group was 2. 34 ± 0. 18，P ＜ 0. 01 ) ． The heart rate reactions in the fear test were significantly higher than the resting heart rate in both guide dog group and eliminated dog group，respectively ( in guide dog group，heart rate at test: 116. 76 ± 11. 11 and at rest: 100. 38 ± 12. 71，P ＜ 0. 01; in eliminated dog group，heart rate at test: 124. 83 ± 15. 57 and at rest: 98. 41 ± 12. 38，P ＜ 0. 01) ． The difference between heart rate in test and in rest ( △HＲ) was also analyzed between guide dogs and eliminated dogs． The △HＲ of eliminated dogs was significantly higher than that of guide dogs ( eliminated dog group: 26. 42 ± 3. 68，guide dog group: 16. 38 ± 2. 03，P ＜ 0. 05) ． Conclusion The △HＲ of guide dogs was lower compared with that of eliminated dogs． This result suggests that guide dogs are more easily to control fear than eliminated dogs． This study provided an effective reference for early screening of potential guide dogs．

Key words: <p>guide dog, fear test, heart rate, attention, active exploration</p>