87:
apparent stress or conflict. The development of the stereotypy into a habit and the difficulty of interrupting said habit explain why it is expected that the frequency of stereotypies increases with age. There is also some research that suggests that the persistence of stereotypies might be due to behavioural differences between animals with stereotypies and those without. One of the behavioural differences that has been researched is a higher resistance to extinction seen in animals that exhibit stereotypic behaviours. Resistance to extinction occurs when animals are unable to stop a learned response. Research with domesticated dogs has shown that dogs who exhibit common stereotypic behaviours have higher resistance to extinction in a simple experimental task than other dogs. This correlation suggests that stereotypic behaviours in dogs may have been reinforced in some way early in their development and have persisted because these dogs are highly resistant to extinction.
79:
establishment of stereotypies is exploratory behaviours that are directed to the outside of a cage. Research suggests that some common stereotypic behaviours seen in mice, wire-gnawing for example, may originate from such exploratory behaviours. It has been noted that when mice climb on the bars of the cage, they frequently attempt to sniff outside the cage by putting their nose between the bars of the cage. During this process, mice will occasionally bite the bars. Over time, the frequency of biting the bar increases while the frequency of sniffing decreases until the mice are left with only the wire-gnawing stereotypy. Although there is strong evidence to suggest that the development of stereotypies is influenced by exploratory behaviours, the mechanisms behind these exploratory behaviours are still unclear. They may be the result of some attractive stimuli outside of the cage or they may result from a motivation to escape the cage.
58:', as they exhibit themselves solely in animals subjected to barren environments, scheduled or restricted feedings, social deprivation and other cases of frustration, but do not arise in 'normal' animals in their natural environments. These behaviours may be maladaptive, involving self-injury or reduced reproductive success, and in laboratory animals can confound behavioural research. Stereotypical behaviours are thought to be caused ultimately by artificial environments that do not allow animals to satisfy their normal behavioural needs. Rather than refer to the behaviour as abnormal, it has been suggested that it be described as "behaviour indicative of an abnormal environment".
96:
176:, including larger and more stimulating enclosures, training, and introductions of stimuli (such as objects, sounds, or scents) to the animal's environment. The enrichment must be varied to remain effective for any length of time. Housing social animals such as primates with other members of their species is also helpful. However, once the behaviour is established, it is sometimes impossible to eliminate due to alterations in the brain.
71:
198:
could compromise the results. However, expressions of stereotypic behaviour can also present a unique opportunity for researchers. Just as human research into basal ganglia dysfunction provided insight into the development of stereotypies in animals, animal research on stereotypic behaviours may help understand the neuronal mechanisms behind many of the motor stereotypies seen in human clinical populations.
101:
100:
97:
102:
99:
132:. Up to 54% of elephants in zoos display stereotypical behaviors. Stereotypic behaviour is also common in captive giraffes; although they perform a wide range of stereotypies, they predominantly lick inanimate objects, which may be related to limitations on natural foraging and feeding behaviour. Stereotypies are well known in
188:
concern. Stereotypies are considered one of the most important indicators of long-term animal welfare problems. A prolonged display of stereotypies suggests that the welfare of the animal is in a peril state. The welfare of the mink is considered an important aspect from a management standpoint as it
82:
The continuance of a stereotypic behaviour can be explained by its impact on the basal ganglia and the establishment of a habit in its expression. Research in humans suggests that damage to the dorsal basal ganglia can make it very difficult for a person to switch between two motor behaviours, thus
197:
Extreme displays of stereotypies can be an animal welfare issue as well as a confound in behavioural research. Since much of the behavioural research done on animals requires the subject to have a certain level of normal behavioural functioning, any stereotypic behaviour exhibited by the subjects
86:
The interruption or cease of a habit is much more tedious and difficult than that of the initial behaviour. As stereotypies develop, they become more readily elicited, so much so that they are no longer just expressed during the original circumstances and may be expressed in the absence of any
117:
Many stereotypies can be induced by confinement; for example, cats pace in zoo cages. Pregnant sows whose feed is restricted bite at their stalls' bars and chew without anything in their mouths. In laboratory rats and mice, grooming is the most common activity other than sleep, and grooming
78:
The display of stereotypies is usually increased in an individual over time due to the changing motivation of the stereotypy. The establishment of a stereotypy may be due to a number of factors within a captive environment. One of the factors within a captive environment that may affect the
61:
Stereotyped behaviour can also refer to normal behaviours that show low variation. For example, mammalian chewing cycles or fish capturing prey using suction feeding. Highly stereotyped movements may be due to mechanical constraint (such as the skull of a viper or fish, in which bones are
83:
they will continuously perform the same behaviour. Similar difficulties in switching between motor behaviours have been seen in bank voles which suggests that basal ganglia dysfunction might be a factor in the development of stereotypies in rodents and other animals.
98:
476:
Würbel, Hanno; Stauffacher, Markus; von Holst, Dietrich (1996-01-12). "Stereotypies in
Laboratory Mice — Quantitative and Qualitative Description of the Ontogeny of 'Wire-gnawing' and 'Jumping' in Zur:ICR and Zur:ICR nu".
27:
121:
Examples of stereotypical behaviours include pacing, rocking, swimming in circles, excessive sleeping, self-mutilation (including feather picking and excessive grooming), and mouthing cage bars.
274:
62:
mechanically linked), tight neural control (as in mammalian chewing), or both. The degree of stereotyping may vary markedly between closely related species engaging in the same behaviour.
1077:
Garner, Joseph P.; Mason, Georgia J.; Smith, Rebecca (2003). "Stereotypic route-tracing in experimentally caged songbirds correlates with general behavioural disinhibition".
853:
Bashaw, Meredith J; Tarou, Loraine R; Maki, Todd S; Maple, Terry L (2001). "A survey assessment of variables related to stereotypy in captive giraffe and okapi".
687:
Swaisgood, R.R.; Shepherdson, D.J. (2005). "Scientific approaches to enrichment and stereotypies in zoo animals: what's been done and where should we go next?".
1024:
Garner, Joseph P; Mason, Georgia J (October 2002). "Evidence for a relationship between cage stereotypies and behavioural disinhibition in laboratory rodents".
147:
issue, not only leading to facility damage from chewing, kicking, and repetitive motion, but also lead to health consequences for the animal if not addressed.
888:
Fernandez, L.T.; Bashaw, M.J.; Sartor, R.L.; Bouwens, N.R.; Maki, T.S. (2008). "Tongue twisters: feeding enrichment to reduce oral stereotypy in giraffe".
764:
Kalueff, A.V.; Wheaton, M.; Murphy, D.L. (2007). "What's wrong with my mouse model? Advances and strategies in animal modeling of anxiety and depression".
924:
54:
behaviours that are repetitive, morphologically identical and which possess no obvious goal or function. These behaviours have been defined as '
387:
Garner, JP; Mason, GJ (2002). "Evidence for a relationship between cage stereotypies and behavioural disinhibition in laboratory rodents".
207:
189:
has repercussions on the production of the animal. Inadequate welfare has been linked to poor reproductivity and poor growth rate.
952:
Vickery, Sophie S.; Mason, Georgia J. (January 2003). "Behavioral persistence in captive bears: implications for reintroduction".
1175:
352:
217:
157:
also exhibit stereotypies when they are caged. Common stereotypies in these species include head throwing and jaw clamping.
139:, usually developing as a result of being confined, particularly with insufficient exercise. They are colloquially called
50:
behaviour has several meanings, leading to ambiguity in the scientific literature. A stereotypy is a term for a group of
715:
716:"A review of behavioral factors involved in the development and continued performance of stereotypic behaviors in pigs"
353:"Stereotypies in female farm mink may be genetically transmitted with higher fertility due to effects on body weight"
74:
An exploratory sniffing behaviour that may lead to the development of the wire-gnawing stereotypy in a caged mouse
26:
935:
807:
251:
525:
Luria, A. R. (March 1965). "Two Kinds of Motor
Perseveration in Massive Injury of the Frontal Lobes".
628:
Keebaugh, A; Mitchell, H; Gaval-Cruz, M; Freeman, K; Edwards, G; Weinshenker, D; Thomas, J (2011).
184:
The development and continued expression of stereotypies in captive animals can quickly become an
1180:
212:
55:
575:(2014). "Association between increased behavioral persistence and stereotypy in the pet dog".
173:
118:
stereotypies have been used to investigate several animal models of anxiety and depression.
641:
486:
164:. Common stereotypic behaviours in dogs include circling, light fixation and fly snapping.
8:
645:
490:
1151:
1104:
1059:
1006:
789:
664:
629:
610:
498:
422:
1139:
1037:
866:
400:
1185:
1143:
1051:
998:
984:
905:
870:
781:
735:
669:
602:
550:
542:
502:
414:
319:"Temperament, stereotypies and anticipatory behaviour as measures of welfare in mink"
318:
1155:
1108:
1063:
1010:
793:
614:
444:
426:
1135:
1094:
1086:
1041:
1033:
988:
980:
897:
862:
832:
773:
727:
696:
659:
649:
592:
584:
534:
494:
404:
396:
368:
364:
334:
330:
297:
289:
150:
51:
1123:
654:
588:
185:
19:
This article is about the behavior in animals. For stereotypies in humans, see
16:
Non-pathological pattern of animal behavior which displays very low variability
777:
1169:
743:
546:
506:
293:
1147:
1090:
1055:
1002:
909:
874:
785:
731:
673:
606:
554:
538:
418:
222:
140:
739:
597:
572:
111:
107:
227:
144:
30:
An elephant exhibiting stereotyped trunk swinging and rocking behaviour
20:
1099:
1046:
993:
901:
700:
409:
302:
129:
1126:; Lewis, Mark H (1999). "A Rodent Model of Spontaneous Stereotypy".
154:
35:
172:
Stereotypical behaviour can sometimes be reduced or eliminated by
70:
627:
125:
630:"PRTFDC1 Is a Genetic Modifier of HPRT-Deficiency in the Mouse"
133:
136:
887:
1121:
475:
161:
566:
564:
275:"Age and context affect the stereotypies of caged mink"
561:
852:
763:
686:
570:
443:
Davis, E.; Down, N.; Garner, J; et al. (2004).
438:
436:
350:
971:Mason, G.J. (1991). "Stereotypies and suffering".
433:
124:Stereotypies are seen in many species, including
1167:
1076:
833:"Elephant deaths at zoos reignite animal debate"
252:"Home | Clemson University, South Carolina"
713:
442:
382:
380:
378:
316:
351:Jeppesen, L.; Heller, K.; Bidsoe, M. (2004).
951:
571:Protopopova, Alexandra; Hall, Nathaniel J.;
445:"Stereotypical behavior: a LAREF discussion"
1023:
386:
375:
1098:
1045:
992:
881:
824:
663:
653:
596:
408:
301:
922:
808:"Defra Final Report on Elephant Welfare"
208:Abnormal behaviour of birds in captivity
94:
69:
65:
25:
846:
1168:
218:List of abnormal behaviours in animals
970:
830:
524:
272:
246:
244:
520:
518:
516:
346:
344:
268:
266:
264:
1122:Powell, Susan B; Newman, Howard A;
110:-induced stereotypy reminiscent of
13:
714:Lawrence, AB; Terlouw, EM (1993).
499:10.1111/j.1439-0310.1996.tb01133.x
241:
192:
106:Video of a mouse showing distinct
14:
1197:
932:University of Minnesota Extension
925:"Horse Behavior and Stable Vices"
513:
341:
317:Hansen, S.; Jeppesen, L. (2006).
261:
179:
160:Stereotypies can also be seen in
855:Applied Animal Behaviour Science
323:Applied Animal Science Behaviour
1115:
1070:
1017:
964:
945:
916:
800:
757:
707:
680:
621:
469:
369:10.1016/j.applanim.2003.11.011
335:10.1016/j.applanim.2005.10.005
310:
1:
1176:Abnormal behaviour in animals
1140:10.1016/s0031-9384(98)00303-5
1038:10.1016/s0166-4328(02)00111-0
867:10.1016/s0168-1591(01)00137-x
401:10.1016/S0166-4328(02)00111-0
234:
985:10.1016/0376-6357(91)90013-p
655:10.1371/journal.pone.0022381
589:10.1016/j.beproc.2014.04.009
167:
7:
201:
90:
10:
1202:
1026:Behavioural Brain Research
18:
1128:Physiology & Behavior
778:10.1016/j.bbr.2007.01.023
923:Christie, Julie (2008).
831:Stern, A. (2005-02-28).
357:Applied Animal Behaviour
230:(for human stereotypies)
174:environmental enrichment
294:10.1163/156853993x00029
1091:10.1006/anbe.2002.2254
732:10.2527/1993.71102815x
213:Animal welfare science
114:
75:
31:
973:Behavioural Processes
577:Behavioural Processes
105:
73:
66:Onset and persistence
29:
539:10.1093/brain/88.1.1
646:2011PLoSO...622381K
491:1996Ethol.102..371W
151:Asiatic black bears
1124:Pendergast, Jane F
273:Mason, G. (1993).
143:. They present a
115:
76:
32:
902:10.1002/zoo.20180
701:10.1002/zoo.20066
573:Wynne, Clive D.L.
452:Lab Primate Newsl
155:Malayan sun bears
103:
1193:
1160:
1159:
1119:
1113:
1112:
1102:
1079:Animal Behaviour
1074:
1068:
1067:
1049:
1021:
1015:
1014:
996:
979:(2–3): 103–115.
968:
962:
961:
949:
943:
942:
940:
934:. Archived from
929:
920:
914:
913:
885:
879:
878:
850:
844:
843:
841:
840:
828:
822:
821:
819:
817:
812:
804:
798:
797:
761:
755:
754:
752:
751:
742:. Archived from
711:
705:
704:
684:
678:
677:
667:
657:
625:
619:
618:
600:
568:
559:
558:
522:
511:
510:
473:
467:
466:
464:
463:
449:
440:
431:
430:
412:
384:
373:
372:
348:
339:
338:
314:
308:
307:
305:
279:
270:
259:
258:
256:
248:
104:
36:animal behaviour
1201:
1200:
1196:
1195:
1194:
1192:
1191:
1190:
1166:
1165:
1164:
1163:
1120:
1116:
1075:
1071:
1022:
1018:
969:
965:
950:
946:
938:
927:
921:
917:
886:
882:
851:
847:
838:
836:
829:
825:
815:
813:
810:
806:
805:
801:
766:Behav Brain Res
762:
758:
749:
747:
726:(10): 2815–25.
712:
708:
685:
681:
626:
622:
569:
562:
523:
514:
474:
470:
461:
459:
447:
441:
434:
389:Behav Brain Res
385:
376:
349:
342:
315:
311:
277:
271:
262:
254:
250:
249:
242:
237:
204:
195:
193:Animal research
182:
170:
95:
93:
68:
24:
17:
12:
11:
5:
1199:
1189:
1188:
1183:
1181:Animal welfare
1178:
1162:
1161:
1134:(2): 355–363.
1114:
1085:(4): 711–727.
1069:
1016:
963:
944:
941:on 2011-11-02.
915:
896:(3): 200–212.
880:
861:(3): 235–247.
845:
823:
799:
756:
706:
695:(6): 499–518.
679:
620:
598:2286/R.I.27039
560:
512:
485:(3): 371–385.
468:
432:
374:
363:(1): 137–143.
340:
329:(1): 172–182.
309:
288:(2): 191–229.
260:
239:
238:
236:
233:
232:
231:
225:
220:
215:
210:
203:
200:
194:
191:
186:animal welfare
181:
180:Animal welfare
178:
169:
166:
92:
89:
67:
64:
15:
9:
6:
4:
3:
2:
1198:
1187:
1184:
1182:
1179:
1177:
1174:
1173:
1171:
1157:
1153:
1149:
1145:
1141:
1137:
1133:
1129:
1125:
1118:
1110:
1106:
1101:
1096:
1092:
1088:
1084:
1080:
1073:
1065:
1061:
1057:
1053:
1048:
1043:
1039:
1035:
1031:
1027:
1020:
1012:
1008:
1004:
1000:
995:
990:
986:
982:
978:
974:
967:
959:
955:
948:
937:
933:
926:
919:
911:
907:
903:
899:
895:
891:
884:
876:
872:
868:
864:
860:
856:
849:
834:
827:
809:
803:
795:
791:
787:
783:
779:
775:
771:
767:
760:
746:on 2008-07-26
745:
741:
737:
733:
729:
725:
721:
717:
710:
702:
698:
694:
690:
683:
675:
671:
666:
661:
656:
651:
647:
643:
640:(7): e22381.
639:
635:
631:
624:
616:
612:
608:
604:
599:
594:
590:
586:
582:
578:
574:
567:
565:
556:
552:
548:
544:
540:
536:
532:
528:
521:
519:
517:
508:
504:
500:
496:
492:
488:
484:
480:
472:
457:
453:
446:
439:
437:
428:
424:
420:
416:
411:
406:
402:
398:
394:
390:
383:
381:
379:
370:
366:
362:
358:
354:
347:
345:
336:
332:
328:
324:
320:
313:
304:
299:
295:
291:
287:
283:
276:
269:
267:
265:
253:
247:
245:
240:
229:
226:
224:
221:
219:
216:
214:
211:
209:
206:
205:
199:
190:
187:
177:
175:
165:
163:
158:
156:
152:
148:
146:
142:
138:
135:
131:
128:, birds, and
127:
122:
119:
113:
109:
88:
84:
80:
72:
63:
59:
57:
53:
49:
45:
41:
37:
28:
22:
1131:
1127:
1117:
1082:
1078:
1072:
1032:(1): 83–92.
1029:
1025:
1019:
976:
972:
966:
957:
953:
947:
936:the original
931:
918:
893:
889:
883:
858:
854:
848:
837:. Retrieved
826:
814:. Retrieved
802:
769:
765:
759:
748:. Retrieved
744:the original
723:
719:
709:
692:
688:
682:
637:
633:
623:
580:
576:
530:
526:
482:
478:
471:
460:. Retrieved
455:
451:
395:(1): 83–92.
392:
388:
360:
356:
326:
322:
312:
285:
281:
223:Stable vices
196:
183:
171:
159:
149:
141:stable vices
123:
120:
116:
85:
81:
77:
60:
47:
43:
39:
33:
890:Zoo Biology
816:16 November
772:(1): 1–18.
533:(1): 1–10.
112:nail biting
108:amphetamine
48:stereotyped
44:stereotypic
1170:Categories
1100:10214/4714
1047:10214/4711
994:10214/4670
839:2006-05-30
750:2011-05-13
720:J Anim Sci
462:2009-12-21
410:10214/4711
303:10214/4679
235:References
228:Stereotypy
145:management
130:carnivores
52:phenotypic
40:stereotypy
21:Stereotypy
835:. Reuters
583:: 77–81.
547:0006-8950
507:1439-0310
282:Behaviour
168:Solutions
1186:Ethology
1156:36677716
1148:10336165
1109:53153853
1064:12731260
1056:12385793
1011:43817366
1003:24923970
960:: 35–43.
910:19360618
875:11376840
794:16158758
786:17306892
689:Zoo Biol
674:21818316
634:PLOS ONE
615:10034066
607:24814910
555:14280275
479:Ethology
458:(4): 3–4
427:12731260
419:12385793
202:See also
126:primates
91:Examples
56:abnormal
740:8226385
665:3144895
642:Bibcode
487:Bibcode
134:stabled
1154:
1146:
1107:
1062:
1054:
1009:
1001:
908:
873:
792:
784:
738:
672:
662:
613:
605:
553:
545:
505:
425:
417:
137:horses
1152:S2CID
1105:S2CID
1060:S2CID
1007:S2CID
954:Ursus
939:(PDF)
928:(PDF)
811:(PDF)
790:S2CID
611:S2CID
527:Brain
448:(PDF)
423:S2CID
278:(PDF)
255:(PDF)
1144:PMID
1052:PMID
999:PMID
906:PMID
871:PMID
818:2011
782:PMID
736:PMID
670:PMID
603:PMID
551:PMID
543:ISSN
503:ISSN
415:PMID
162:dogs
153:and
1136:doi
1095:hdl
1087:doi
1042:hdl
1034:doi
1030:136
989:hdl
981:doi
898:doi
863:doi
774:doi
770:179
728:doi
697:doi
660:PMC
650:doi
593:hdl
585:doi
581:106
535:doi
495:doi
483:102
405:hdl
397:doi
393:136
365:doi
331:doi
298:hdl
290:doi
286:127
46:or
34:In
1172::
1150:.
1142:.
1132:66
1130:.
1103:.
1093:.
1083:66
1081:.
1058:.
1050:.
1040:.
1028:.
1005:.
997:.
987:.
977:25
975:.
958:14
956:.
930:.
904:.
894:27
892:.
869:.
859:73
857:.
788:.
780:.
768:.
734:.
724:71
722:.
718:.
693:24
691:.
668:.
658:.
648:.
636:.
632:.
609:.
601:.
591:.
579:.
563:^
549:.
541:.
531:88
529:.
515:^
501:.
493:.
481:.
456:34
454:.
450:.
435:^
421:.
413:.
403:.
391:.
377:^
361:86
359:.
355:.
343:^
327:99
325:.
321:.
296:.
284:.
280:.
263:^
243:^
42:,
38:,
1158:.
1138::
1111:.
1097::
1089::
1066:.
1044::
1036::
1013:.
991::
983::
912:.
900::
877:.
865::
842:.
820:.
796:.
776::
753:.
730::
703:.
699::
676:.
652::
644::
638:6
617:.
595::
587::
557:.
537::
509:.
497::
489::
465:.
429:.
407::
399::
371:.
367::
337:.
333::
306:.
300::
292::
257:.
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.