Quantity Discrimination in Domestic Rats, Rattus norvegicus

Laura Cox, V. Tamara Montrose

Research output: Contribution to journalJournal Article

5 Citations (Scopus)

Abstract

Quantity discrimination is a basic form of numerical competence where an animal distinguishes which of two amounts is greater in size. Whilst quantity discrimination in rats has been investigated via training paradigms, rats’ natural quantity discrimination abilities without explicit training for a desired response have not been explored. This study investigated domestic rats’ ability to perform quantity discrimination. Domestic rats ( n = 12) were examined for their ability to distinguish the larger amount under nine quantity comparisons. One-sample t -tests identified a significant preference for the larger quantity in comparisons of 1 vs. 2, 2 vs. 3, 3 vs. 5, 3 vs. 8, 4 vs. 6, and 4 vs. 8. No preference between quantities was found for comparisons of 3 vs. 4, 4 vs. 5 and 5 vs. 6. Overall, this study drew two key conclusions. Firstly, that domestic rats are capable of performing quantity discrimination without extensive training. Secondly, as subjects adhered to Weber’s law, it was concluded that the approximate number system underpins domestic rats’ ability to perform spontaneous quantity discrimination
Original languageEnglish
JournalAnimals
Volume6
Issue number8
DOIs
Publication statusPublished - 3 Aug 2016

Fingerprint

Rattus norvegicus
Aptitude
rats
Mental Competency
animals

All Science Journal Classification (ASJC) codes

  • Small Animals

Cite this

Cox, Laura ; Montrose, V. Tamara. / Quantity Discrimination in Domestic Rats, Rattus norvegicus. In: Animals. 2016 ; Vol. 6, No. 8.
@article{572917c664464c2081ad1c599a96910b,
title = "Quantity Discrimination in Domestic Rats, Rattus norvegicus",
abstract = "Quantity discrimination is a basic form of numerical competence where an animal distinguishes which of two amounts is greater in size. Whilst quantity discrimination in rats has been investigated via training paradigms, rats’ natural quantity discrimination abilities without explicit training for a desired response have not been explored. This study investigated domestic rats’ ability to perform quantity discrimination. Domestic rats ( n = 12) were examined for their ability to distinguish the larger amount under nine quantity comparisons. One-sample t -tests identified a significant preference for the larger quantity in comparisons of 1 vs. 2, 2 vs. 3, 3 vs. 5, 3 vs. 8, 4 vs. 6, and 4 vs. 8. No preference between quantities was found for comparisons of 3 vs. 4, 4 vs. 5 and 5 vs. 6. Overall, this study drew two key conclusions. Firstly, that domestic rats are capable of performing quantity discrimination without extensive training. Secondly, as subjects adhered to Weber’s law, it was concluded that the approximate number system underpins domestic rats’ ability to perform spontaneous quantity discrimination",
author = "Laura Cox and Montrose, {V. Tamara}",
year = "2016",
month = "8",
day = "3",
doi = "10.3390/ani6080046",
language = "English",
volume = "6",
journal = "Animals",
issn = "2076-2615",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",

}

Quantity Discrimination in Domestic Rats, Rattus norvegicus. / Cox, Laura; Montrose, V. Tamara.

In: Animals, Vol. 6, No. 8, 03.08.2016.

Research output: Contribution to journalJournal Article

TY - JOUR

T1 - Quantity Discrimination in Domestic Rats, Rattus norvegicus

AU - Cox, Laura

AU - Montrose, V. Tamara

PY - 2016/8/3

Y1 - 2016/8/3

N2 - Quantity discrimination is a basic form of numerical competence where an animal distinguishes which of two amounts is greater in size. Whilst quantity discrimination in rats has been investigated via training paradigms, rats’ natural quantity discrimination abilities without explicit training for a desired response have not been explored. This study investigated domestic rats’ ability to perform quantity discrimination. Domestic rats ( n = 12) were examined for their ability to distinguish the larger amount under nine quantity comparisons. One-sample t -tests identified a significant preference for the larger quantity in comparisons of 1 vs. 2, 2 vs. 3, 3 vs. 5, 3 vs. 8, 4 vs. 6, and 4 vs. 8. No preference between quantities was found for comparisons of 3 vs. 4, 4 vs. 5 and 5 vs. 6. Overall, this study drew two key conclusions. Firstly, that domestic rats are capable of performing quantity discrimination without extensive training. Secondly, as subjects adhered to Weber’s law, it was concluded that the approximate number system underpins domestic rats’ ability to perform spontaneous quantity discrimination

AB - Quantity discrimination is a basic form of numerical competence where an animal distinguishes which of two amounts is greater in size. Whilst quantity discrimination in rats has been investigated via training paradigms, rats’ natural quantity discrimination abilities without explicit training for a desired response have not been explored. This study investigated domestic rats’ ability to perform quantity discrimination. Domestic rats ( n = 12) were examined for their ability to distinguish the larger amount under nine quantity comparisons. One-sample t -tests identified a significant preference for the larger quantity in comparisons of 1 vs. 2, 2 vs. 3, 3 vs. 5, 3 vs. 8, 4 vs. 6, and 4 vs. 8. No preference between quantities was found for comparisons of 3 vs. 4, 4 vs. 5 and 5 vs. 6. Overall, this study drew two key conclusions. Firstly, that domestic rats are capable of performing quantity discrimination without extensive training. Secondly, as subjects adhered to Weber’s law, it was concluded that the approximate number system underpins domestic rats’ ability to perform spontaneous quantity discrimination

U2 - 10.3390/ani6080046

DO - 10.3390/ani6080046

M3 - Journal Article

VL - 6

JO - Animals

JF - Animals

SN - 2076-2615

IS - 8

ER -