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In This Article

  • Summary
  • Abstract
  • Introduction
  • Protocol
  • Representative Results
  • Discussion
  • Acknowledgements
  • Materials
  • References
  • Reprints and Permissions

Summary

A protocol is provided to use an Open Field Maze to access general locomotor activity, anxiety and emotionality in a laboratory mouse model.

Abstract

Animal models have proven to be invaluable to researchers trying to answer questions regarding the mechanisms of behavior. The Open Field Maze is one of the most commonly used platforms to measure behaviors in animal models. It is a fast and relatively easy test that provides a variety of behavioral information ranging from general ambulatory ability to data regarding the emotionality of the subject animal. As it relates to rodent models, the procedure allows the study of different strains of mice or rats both laboratory bred and wild-captured. The technique also readily lends itself to the investigation of different pharmacological compounds for anxiolytic or anxiogenic effects. Here, a protocol for use of the open field maze to describe mouse behaviors is detailed and a simple analysis of general locomotor ability and anxiety-related emotional behaviors between two strains of C57BL/6 mice is performed. Briefly, using the described protocol we show Wild Type mice exhibited significantly less anxiety related behaviors than did age-matched Knock Out mice while both strains exhibited similar ambulatory ability.

Introduction

The Open Field Maze (OFM) was initially developed in 1934 as a test to measure emotionality in rodents1. It has attained the status of being one of the most widely used measures of behavior in animal psychology2. It provides an easy and fairly rapid assessment of well-defined behaviors requiring no training to the test subject and little to no specialized training for the human administering the test. These attributes have led to wide-spread use of the open field maze in research extended to other animal species such as calves, pigs, rabbits, primates, honeybees and lobsters3. Part of its popularity arises from the fact that the psycho....

Protocol

ملاحظة: تم تقديم جميع إجراءات تنفيذه هنا لوالموافقة عليها من قبل IACUC (مكتب البحوث الامتثال) وجرت وفقا المبادئ التوجيهية المعاهد الوطنية للصحة. وكانت الفئران المستخدمة في الاختبار السلوكي نموذج السذاجة وعدم استخدامها لإجراء اختبارات أخرى. وقد وصفت البرية نوع C57BL / 6 و ?.......

Representative Results

متوسط ​​عدد الأفراد لكل سلالة من الفئران تم اختبارها في معظم الحالات هو ما يقرب من 20 إلى توليد أهمية إحصائية كافية. ومع ذلك، يمكن لهذا العدد أن يكون في حدود 8-30 اعتمادا على توافر الماوس. اعتمادا على قياس أو المقارنات المطلوبة، بل هو أيضا مواتية لاستخدام موضوعات العمر .......

Discussion

فتح المتاهة الميدان هي واحدة من المنصات الأكثر استخداما على نطاق واسع في الدراسات السلوكية الحيوانية. وهناك عدد من المعلمات التقليدية وعلم السلوك الهامة 2،4 يمكن جمعها وتحليلها خلال أداء تسجيل الخروج. هذه البيانات تسمح الباحث لقياس السلوكيات تتراوح بين النشاط.......

Acknowledgements

This work was supported by The National Institute of Health (NIH-2RO1NS033661) and by the Alabama Agricultural Experiment Station (HATCH ALA021-1-09017).

....

Materials

NameCompanyCatalog NumberComments
Multi Unit Open Field TestSan Diego Instruments, Inc.White 7001-0354Any single or multi unit open field maze can be used
SMART DT Tracking SoftwarePanLab/Harvard Apparatus76-0695Any tracking software can be utilized with this protocol
Sony 990x Video Camera RecorderSonyCCD-TRV328Any suitable video camera can be attached to computer for recording tracking profiles.

References

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