List of works - Lydia M. Hopper

'Ghost' experiments and the dissection of social learning in humans and animals

scientific article

A multi-institutional assessment of a short-form personality questionnaire for use with macaques

scientific article published on 02 September 2018

A unique zoo-sanctuary collaboration for chimpanzees

scientific article published on 03 January 2019

An assessment of touchscreens for testing primate food preferences and valuations

scientific article published on 01 April 2019

An evaluation of the efficacy of video displays for use with chimpanzees (Pan troglodytes)

scientific article (publication date: May 2012)

An evaluation of video cameras for collecting observational data on sanctuary-housed chimpanzees (Pan troglodytes).

scientific article published on 19 April 2018

Assessing chimpanzees’ fluency of movement: Applications for monitoring health and welfare

scientific article published in May 2022

Asymmetries in the production of self-directed behavior by chimpanzees and gorillas during a computerized cognitive test

scientific article published on 14 November 2015

Behavioral research as physical enrichment for captive chimpanzees.

scientific article published on 27 May 2016

Captive chimpanzee foraging in a social setting: a test of problem solving, flexibility, and spatial discounting

scientific article

Celebrating the continued importance of "Machiavellian Intelligence" 30 years on

scientific article published on 01 November 2018

Chimpanzee food preferences, associative learning, and the origins of cooking

scientific article

Chimpanzees copy dominant and knowledgeable individuals: implications for cultural diversity

scientific article

Chimpanzees create and modify probe tools functionally: A study with zoo-housed chimpanzees

scientific article

Chimpanzees demonstrate individual differences in social information use

scientific article published on 19 June 2018

Chimpanzees' socially maintained food preferences indicate both conservatism and conformity

scientific article

Chimpanzees, cooking, and a more comparative psychology

scientific article published on 11 April 2016

Developing a comprehensive and comparative questionnaire for measuring personality in chimpanzees using a simultaneous top-down/bottom-up design

scientific article published on 03 June 2013

Different responses to reward comparisons by three primate species

scientific article

Do zoo visitors induce attentional bias effects in primates completing cognitive tasks?

scientific article published on 06 November 2020

Emulation, imitation, over-imitation and the scope of culture for child and chimpanzee

scientific article

End state copying by humans (Homo sapiens): implications for a comparative perspective on cumulative culture

scientific article published on 2 April 2012

Establishing an infrastructure for collaboration in primate cognition research

scientific article published on 24 October 2019

Evaluating the Behavior and Temperament of African Penguins in a Non-Contact Animal Encounter Program

scientific article published on 06 June 2019

Experimental studies of traditions and underlying transmission processes in chimpanzees

article

Familiarity mediates apes' attentional biases toward human faces

scientific article published on 27 April 2022

Foraging in a social setting: a comparative analysis of captive gorillas and chimpanzees

scientific article published on 26 February 2019

Hardly habitual: chimpanzees and gorillas show flexibility in their motor responses when presented with a causally-clear task

article

Influence of personality, age, sex, and estrous state on chimpanzee problem-solving success

scientific article

Observational learning in chimpanzees and children studied through 'ghost' conditions.

scientific article published in April 2008

Observational learning of tool use in children: Investigating cultural spread through diffusion chains and learning mechanisms through ghost displays

scientific article published on 12 January 2010

Personality influences responses to inequity and contrast in chimpanzees

scientific article

Problem solving flexibility across early development

scientific article published on 26 August 2020

Selective and contagious prosocial resource donation in capuchin monkeys, chimpanzees and humans

scientific article

Social Models Enhance Apes' Memory for Novel Events

scientific article published on 20 January 2017

Social comparison mediates chimpanzees' responses to loss, not frustration

scientific article

Social networks in primates: smart and tolerant species have more efficient networks

scientific article

Studying primate cognition in a social setting to improve validity and welfare: a literature review highlighting successful approaches

scientific article published on 03 August 2017

Testing differential use of payoff-biased social learning strategies in children and chimpanzees.

scientific article published in December 2017

Testing the weekend effect hypothesis: Time of day and lunar phase better predict the timing of births in laboratory-housed primates than day of week

scientific article published on 09 July 2019

The application of noninvasive, restraint-free eye-tracking methods for use with nonhuman primates

scientific article published on 15 September 2020

The effect of captivity on the primate gut microbiome varies with host dietary niche

scientific article published on 11 November 2019

The importance of witnessed agency in chimpanzee social learning of tool use.

scientific article

The interplay between individual, social, and environmental influences on chimpanzee food choices

scientific article published on 26 March 2014

The zone of latent solutions and its relevance to understanding ape cultures

scientific article published on 11 October 2020

User innovation: a novel framework for studying animal innovation within a comparative context

scientific article published on 04 September 2019

What is unique about the human eye? Comparative image analysis on the external eye morphology of human and nonhuman great apes

scientific article published in May 2022

When given the opportunity, chimpanzees maximize personal gain rather than "level the playing field".

scientific article published on 17 September 2013

List of works by Lydia M. Hopper

'Ghost' experiments and the dissection of social learning in humans and animals

A multi-institutional assessment of a short-form personality questionnaire for use with macaques

A unique zoo-sanctuary collaboration for chimpanzees

An assessment of touchscreens for testing primate food preferences and valuations

An evaluation of the efficacy of video displays for use with chimpanzees (Pan troglodytes)

An evaluation of video cameras for collecting observational data on sanctuary-housed chimpanzees (Pan troglodytes).

Assessing chimpanzees’ fluency of movement: Applications for monitoring health and welfare

Asymmetries in the production of self-directed behavior by chimpanzees and gorillas during a computerized cognitive test

Behavioral research as physical enrichment for captive chimpanzees.

Captive chimpanzee foraging in a social setting: a test of problem solving, flexibility, and spatial discounting

Celebrating the continued importance of "Machiavellian Intelligence" 30 years on

Chimpanzee food preferences, associative learning, and the origins of cooking

Chimpanzees copy dominant and knowledgeable individuals: implications for cultural diversity

Chimpanzees create and modify probe tools functionally: A study with zoo-housed chimpanzees

Chimpanzees demonstrate individual differences in social information use

Chimpanzees' socially maintained food preferences indicate both conservatism and conformity

Chimpanzees, cooking, and a more comparative psychology

Developing a comprehensive and comparative questionnaire for measuring personality in chimpanzees using a simultaneous top-down/bottom-up design

Different responses to reward comparisons by three primate species

Do zoo visitors induce attentional bias effects in primates completing cognitive tasks?

Emulation, imitation, over-imitation and the scope of culture for child and chimpanzee

End state copying by humans (Homo sapiens): implications for a comparative perspective on cumulative culture

Establishing an infrastructure for collaboration in primate cognition research

Evaluating the Behavior and Temperament of African Penguins in a Non-Contact Animal Encounter Program

Experimental studies of traditions and underlying transmission processes in chimpanzees

Familiarity mediates apes' attentional biases toward human faces

Foraging in a social setting: a comparative analysis of captive gorillas and chimpanzees

Hardly habitual: chimpanzees and gorillas show flexibility in their motor responses when presented with a causally-clear task

Influence of personality, age, sex, and estrous state on chimpanzee problem-solving success

Observational learning in chimpanzees and children studied through 'ghost' conditions.

Observational learning of tool use in children: Investigating cultural spread through diffusion chains and learning mechanisms through ghost displays

Personality influences responses to inequity and contrast in chimpanzees

Problem solving flexibility across early development

Selective and contagious prosocial resource donation in capuchin monkeys, chimpanzees and humans

Social Models Enhance Apes' Memory for Novel Events

Social comparison mediates chimpanzees' responses to loss, not frustration

Social networks in primates: smart and tolerant species have more efficient networks

Studying primate cognition in a social setting to improve validity and welfare: a literature review highlighting successful approaches

Testing differential use of payoff-biased social learning strategies in children and chimpanzees.

Testing the weekend effect hypothesis: Time of day and lunar phase better predict the timing of births in laboratory-housed primates than day of week

The application of noninvasive, restraint-free eye-tracking methods for use with nonhuman primates

The effect of captivity on the primate gut microbiome varies with host dietary niche

The importance of witnessed agency in chimpanzee social learning of tool use.

The interplay between individual, social, and environmental influences on chimpanzee food choices

The zone of latent solutions and its relevance to understanding ape cultures

User innovation: a novel framework for studying animal innovation within a comparative context

What is unique about the human eye? Comparative image analysis on the external eye morphology of human and nonhuman great apes

When given the opportunity, chimpanzees maximize personal gain rather than "level the playing field".