{"id":37941,"date":"2023-08-22T18:43:49","date_gmt":"2023-08-22T23:43:49","guid":{"rendered":"https:\/\/lafeber.com\/pet-birds\/?p=37941"},"modified":"2025-10-24T18:25:28","modified_gmt":"2025-10-24T23:25:28","slug":"inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots","status":"publish","type":"post","link":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/","title":{"rendered":"Inside Dr. Pepperberg’s Lab: Delayed Gratification In African Grey Parrots"},"content":{"rendered":"
\"African
Griffin preens to distract himself during a trial. Image courtesy of Dr. Irene Pepperberg<\/figcaption><\/figure>\n

Simply stated, “executive function” means using the rational bit of your brain rather than the emotional bit to make a decision. Executive function generally involves three main aspects of behavior (Diamond, 2013)\u2014inhibitory control (thinking about the results of one\u2019s actions and resisting impulsive behavior), working memory (keeping track of the various possible outcomes of one\u2019s actions), and cognitive flexibility (being able to switch between tasks so as to do what is needed when it is needed). Executive function thus refers to a suite of skills that, when used together, correlate with successful behavior in various aspects of life, as it allows an individual to choose the most beneficial plan of action. It is the inhibitory control aspect, however, that is the best-known, because of the famous \u201cMarshmallow Test\u201d performed by Mischel (1974).<\/p>\n

Delayed Gratification Test<\/h3>\n

The Test was quite simple: Mischel studied a large number of 4-year-old children. He sat each child down in a room in front of a table that had a marshmallow on a plate. He told the child that he had to run an errand, and if the child could sit there and NOT eat the marshmallow until he returned, he would bring back a second marshmallow for the child to eat. He told the child that they could eat what was on the plate at any time, but if they did so, they forfeited the second marshmallow. He made them wait 15 minutes\u2014an eternity to a 4-year-old! Nevertheless, a percentage of the children did wait. Those who did, usually distracted themselves in some way\u2014by singing, dancing around, napping, etc. The most interesting part, however, was that when Mischel tracked these children many years later, he found that those who had waited had had greater success in every part of their lives (schooling, careers, relationships, etc.; Shoda et al., 1990).<\/p>\n

For those of us who study animal behavior, the idea of a cross-species comparison was intriguing, especially for those of us who work with parrots! We tend to think of the social skills of parrots as equivalent to those of 2-year-old children\u2026creatures who want what they want immediately, with little capacity to wait. But what if that wasn\u2019t exactly true?<\/p>\n

Can Parrots Show Patience?<\/h3>\n

As it turns out, parrots are pretty good at waiting for better rewards. Studies in cockatoos (Auersperg et al., 2013) and African grey parrots (Koepke et al., 2015) showed they will wait for a considerable amount of time for a superior treat\u2014but not for more of a treat, even a really desirable one, and I\u2019ve written about this before. Griffin, for example, would wait 15 mins for a better treat (and, like the children, distracted himself while waiting; see Figure and earlier blog) but not even a minute for more (Koepke et al., 2015; Pepperberg & Rosenberger, 2022). Ecologically, it makes sense: Avian foragers might fly over an acceptable food source en route to one of better quality to gain more calories per expended effort; however, stopping for a small quantity en route to a larger, equal quality source likely poses few risks, particularly if the larger source could attract more competition.<\/p>\n

A Waiting Game Is Hatched<\/h3>\n

But what might help birds to learn to wait for more? If we found some procedure that worked for our parrots, might the birds then be a model for human children? Most importantly, however, we didn\u2019t simply want to train<\/em> the birds to wait, as one might train a dog. For dogs, \u201cstay\u201d is a command and they generally respond by simply remaining in place (as they are trained to do\u2014by reinforcement and possible punishment) until they receive a specific release. Although one might argue that they have a choice to obey, they cannot disobey without serious consequences (e.g., no reward at all or possible punishment). The dog\u2019s behavior thus really has nothing to do with choice<\/em>\u2014which is the entire point of executive function\u2014a voluntary decision to do something that has positive future consequences. After reading a lot of literature on children and even apes, we came up with a plan…<\/p>\n

We used something called “symbolic representation.” Now, Griffin already knew that different vocalizations symbolized different objects, attributes, and actions; we then trained Griffin to correlated symbols\u2014little wooden hearts\u2014with pieces of cashews. Thus, each heart represented a chunk of cashew, and if he chose the larger number of hearts compared to a smaller number, he got to eat the bigger number (Pepperberg & Rosenberger, 2022). The next step was to see if he would wait for more hearts; that is, he no longer had to sit in front of a yummy nut for some period of time in order to get several yummy nuts; now he just had to sit and wait for more hearts\u2014which would result in getting him more nuts. But the “siren call” of the nut was no longer tempting him from moment to moment.<\/p>\n

He succeeded very well (Pepperberg & Rosenberger, 2022), waiting for up to 15 minutes, and on almost all his trials. And he wasn\u2019t simply trained to wait. When we showed him the larger number of hearts and asked him to wait for the smaller number (a control for training\u2014if he were trained, he\u2019d wait whatever the number), he looked at us as though we were crazy and immediately tapped the container holding the hearts. But would that transfer to actual nuts?<\/p>\n

We thus tested him and also tested two other African grey parrots who are companion animals, Pepper and Franco, who have succeeded in several other experiments in our lab (e.g., Pepperberg & Hartsfield, 2014), but who hadn\u2019t been part of the heart study. They do, however, live in a household where they are treated more like family members than pets\u2014which means they often have to wait their turn to take part in various activities, so that they, like Griffin, understand the meaning of \u201cwait\u201d.<\/p>\n

Showing Patience For Nuts<\/h3>\n

Griffin now was able to wait, again for 15 minutes, for more nuts; he also appropriately failed control trials, where we gave him more nuts and asked him to wait for a smaller amount. What was really interesting, however, were the results from Pepper and Franco! (Pepperberg & Hartsfield, 2023).<\/p>\n

Neither Pepper nor Franco cared for the task\u2014they really disliked being ignored by their human caretaker during the waiting period. We actually ended the study early for them so as not to stress them. But even with far fewer trials, we learned quite a bit. First, Pepper, who was initially succeeding in all her trials\u2014including one for 15 mins!\u2014realized that if she chose not to wait, she could reconnect with her human\u2026something she wanted more than treats, so she stopped waiting! And Franco, who didn\u2019t wait nearly as long as either Griffin or Pepper, still waited for up to 5 minutes. Remember, that without the experience with hearts, Griffin would barely wait a minute.<\/p>\n

So, we learned several things. First, that experience with the hearts helped strengthen Griffin\u2019s executive function; maybe such experience would help children who initially fail the Marshmallow Test. Second, Pepper was smart enough to figure out how to get what she really wanted; we know that some children also wouldn\u2019t wait for reasons that made sense to them (e.g., they didn\u2019t believe or trust that the researcher would return with the second treat). Third, even Franco, who was struggling somewhat with the task, could wait a decent amount of time. Fourth, although Pepper and Franco didn\u2019t have Griffin\u2019s experience, they DID have lots of practical experience in their home life with turn-taking and waiting\u2014and one study has shown that children who have such experience can pass the Marshmallow Test even before they are four years old\u2014a striking finding (Russell et al., 2013). So, the take-home lesson: Experiences of all sorts seem to have a significant effect on subjects\u2019 behavior!<\/p>\n

\u00a0<\/strong><\/p>\n

References<\/strong><\/p>\n

Auersperg, A. M. I., Laumer, I. B., & Bugnyar, T. (2013). Goffin cockatoos wait for qualitative and quantitative gains but prefer \u2018better\u2019 to \u2018more\u2019. The Royal Society: Biology Letters, 9, <\/em>Article 20121092<\/p>\n

Diamond, A. (2013). Executive functions. Annual Review of Psychology<\/em>, 64<\/em>(1), 135\u2013168.<\/p>\n

Koepke, A., Gray, S.L., & Pepperberg, I.M. (2015). Delayed gratification: A Grey parrot (Psittacus erithacus<\/em>) will wait for a better reward. Journal of<\/em> Comparative Psychology<\/em>, 129<\/em>, 339-346.<\/p>\n

Mischel, W. (1974). Processes in delay of gratification. In L. Berkowitz (Ed.), Advances in experimental social psychology, Vol. 7 <\/em>(pp. 249\u2013292). New York, NY: Academic Press.<\/p>\n

Pepperberg, I. M., & Hartsfield, L. A. (2014). Can Grey parrots (Psittacus erithacus<\/em>) succeed on a complex foraging task failed by nonhuman primates (Pan troglodytes, Pongo abelii, Sapajus apella<\/em>) but solved by wrasse fish (Labroides dimidiatus<\/em>)? Journal of Comparative Psychology<\/em>, 128<\/em>, 298\u2013306.<\/p>\n

Pepperberg, I. M., & Hartsfield, L. A. (2023). A study of executive function in Grey parrots (Psittacus erithacus<\/em>): Experience can affect delay of gratification. Journal of Comparative Psychology<\/em>. Advance online publication.<\/p>\n

Pepperberg, I. M., & Rosenberger, V. A. (2022). Delayed gratification: A Grey parrot (Psittacus erithacus<\/em>) will wait for more tokens. Journal of Comparative Psychology<\/em>, 136<\/em>(1), 79\u201389.<\/p>\n

Russell, B. S., Londhe, R., & Britner, P. A. (2013). Parental contributions to the delay of gratification in preschool-aged children. Journal of Child and Family Studies<\/em>, 22<\/em>(4), 471\u2013478.<\/p>\n

Shoda, Y., Mischel,W., & Peake, P. K. (1990). Predicting adolescent cognitive and self-regulatory competencies from preschool delay of gratification: Identifying diagnostic conditions. Developmental Psychology<\/em>, 26<\/em>, 978\u2013986.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways. <\/p>\n","protected":false},"author":23,"featured_media":37942,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[81,211,171],"tags":[],"class_list":["post-37941","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-behavior","category-editor-choice","category-everyday"],"acf":[],"yoast_head":"\nInside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.<\/title>\n<meta name=\"description\" content=\"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.\" \/>\n<meta property=\"og:description\" content=\"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/\" \/>\n<meta property=\"og:site_name\" content=\"Lafeber\u00ae Pet Birds\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-22T23:43:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-24T23:25:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png\" \/>\n\t<meta property=\"og:image:width\" content=\"732\" \/>\n\t<meta property=\"og:image:height\" content=\"456\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Irene Pepperberg, Ph.D.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Irene Pepperberg, Ph.D.\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/\"},\"author\":{\"name\":\"Irene Pepperberg, Ph.D.\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/#\\\/schema\\\/person\\\/e2384637ed0fac4b764f548a0441622d\"},\"headline\":\"Inside Dr. Pepperberg’s Lab: Delayed Gratification In African Grey Parrots\",\"datePublished\":\"2023-08-22T23:43:49+00:00\",\"dateModified\":\"2025-10-24T23:25:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/\"},\"wordCount\":1585,\"commentCount\":1,\"image\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Pepperberg_Griffin.png\",\"articleSection\":[\"Behavior\",\"Editor Choice\",\"Everyday\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/\",\"url\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/\",\"name\":\"Inside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Pepperberg_Griffin.png\",\"datePublished\":\"2023-08-22T23:43:49+00:00\",\"dateModified\":\"2025-10-24T23:25:28+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/#\\\/schema\\\/person\\\/e2384637ed0fac4b764f548a0441622d\"},\"description\":\"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#primaryimage\",\"url\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Pepperberg_Griffin.png\",\"contentUrl\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Pepperberg_Griffin.png\",\"width\":732,\"height\":456,\"caption\":\"Griffin preens to distract himself during a trial. Image courtesy of Dr. Irene Pepperberg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Inside Dr. Pepperberg’s Lab: Delayed Gratification In African Grey Parrots\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/#website\",\"url\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/\",\"name\":\"Lafeber\u00ae Pet Birds\",\"description\":\"Two Generations of Veterinarians Caring & Working for the Health of Animals\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/#\\\/schema\\\/person\\\/e2384637ed0fac4b764f548a0441622d\",\"name\":\"Irene Pepperberg, Ph.D.\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/Pepperberg3crop-96x96.jpg\",\"url\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/Pepperberg3crop-96x96.jpg\",\"contentUrl\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/wp-content\\\/uploads\\\/Pepperberg3crop-96x96.jpg\",\"caption\":\"Irene Pepperberg, Ph.D.\"},\"description\":\"Dr. Irene Pepperberg is a lecturer and research associate at\u00a0Harvard University in Cambridge, Massachusetts, where her research lab is located. You can help Dr. Pepperberg continue the groundbreaking parrot research she began more than 30 years ago with Alex, the African grey parrot who won admirers from around the world with his cognitive abilities. If you shop online through sites such as Amazon.com, you can designate the Alex Foundation to receive a percentage of your final sales, or register with the Alex Foundation at iGive.com and a percentage of sales from companies associated with iGive will go to the foundation. The Alex Foundation also has a \u201cDonate\u201d button linked to PayPal. Visit\u00a0The Alex Foundation\u00a0and click on the \u201cSupport Us\u201d link for more information. Read more about the lab at The Alex Foundation Facebook page and at The Alex Foundation Twitter account.\",\"url\":\"https:\\\/\\\/lafeber.com\\\/pet-birds\\\/author\\\/irene\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Inside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.","description":"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/","og_locale":"en_US","og_type":"article","og_title":"Inside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.","og_description":"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.","og_url":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/","og_site_name":"Lafeber\u00ae Pet Birds","article_published_time":"2023-08-22T23:43:49+00:00","article_modified_time":"2025-10-24T23:25:28+00:00","og_image":[{"width":732,"height":456,"url":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png","type":"image\/png"}],"author":"Irene Pepperberg, Ph.D.","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Irene Pepperberg, Ph.D.","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#article","isPartOf":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/"},"author":{"name":"Irene Pepperberg, Ph.D.","@id":"https:\/\/lafeber.com\/pet-birds\/#\/schema\/person\/e2384637ed0fac4b764f548a0441622d"},"headline":"Inside Dr. Pepperberg’s Lab: Delayed Gratification In African Grey Parrots","datePublished":"2023-08-22T23:43:49+00:00","dateModified":"2025-10-24T23:25:28+00:00","mainEntityOfPage":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/"},"wordCount":1585,"commentCount":1,"image":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#primaryimage"},"thumbnailUrl":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png","articleSection":["Behavior","Editor Choice","Everyday"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/","url":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/","name":"Inside Dr. Pepperberg's Lab: Delayed Gratification In African Grey Parrots – Pet Birds by Lafeber Co.","isPartOf":{"@id":"https:\/\/lafeber.com\/pet-birds\/#website"},"primaryImageOfPage":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#primaryimage"},"image":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#primaryimage"},"thumbnailUrl":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png","datePublished":"2023-08-22T23:43:49+00:00","dateModified":"2025-10-24T23:25:28+00:00","author":{"@id":"https:\/\/lafeber.com\/pet-birds\/#\/schema\/person\/e2384637ed0fac4b764f548a0441622d"},"description":"The infamous Marshmallow Test showed that young children who can delay gratification (waiting 15 minutes earned them an extra marshmallow) are more likely to succeed later in life. But can parrots also learn to delay gratification? In her latest blog, Dr. Irene Pepperberg walks us through her study with African grey parrot Griffin and fellow African greys Pepper and Franco in which their patience would pay off with more nut treats if they learned to wait. See how the greys faired and the study\u2019s biggest takeaways.","breadcrumb":{"@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#primaryimage","url":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png","contentUrl":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/2023\/08\/Pepperberg_Griffin.png","width":732,"height":456,"caption":"Griffin preens to distract himself during a trial. Image courtesy of Dr. Irene Pepperberg"},{"@type":"BreadcrumbList","@id":"https:\/\/lafeber.com\/pet-birds\/inside-dr-pepperbergs-lab-delayed-gratification-in-african-grey-parrots\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/lafeber.com\/pet-birds\/"},{"@type":"ListItem","position":2,"name":"Inside Dr. Pepperberg’s Lab: Delayed Gratification In African Grey Parrots"}]},{"@type":"WebSite","@id":"https:\/\/lafeber.com\/pet-birds\/#website","url":"https:\/\/lafeber.com\/pet-birds\/","name":"Lafeber\u00ae Pet Birds","description":"Two Generations of Veterinarians Caring & Working for the Health of Animals","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/lafeber.com\/pet-birds\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/lafeber.com\/pet-birds\/#\/schema\/person\/e2384637ed0fac4b764f548a0441622d","name":"Irene Pepperberg, Ph.D.","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/Pepperberg3crop-96x96.jpg","url":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/Pepperberg3crop-96x96.jpg","contentUrl":"https:\/\/lafeber.com\/pet-birds\/wp-content\/uploads\/Pepperberg3crop-96x96.jpg","caption":"Irene Pepperberg, Ph.D."},"description":"Dr. Irene Pepperberg is a lecturer and research associate at\u00a0Harvard University in Cambridge, Massachusetts, where her research lab is located. You can help Dr. Pepperberg continue the groundbreaking parrot research she began more than 30 years ago with Alex, the African grey parrot who won admirers from around the world with his cognitive abilities. If you shop online through sites such as Amazon.com, you can designate the Alex Foundation to receive a percentage of your final sales, or register with the Alex Foundation at iGive.com and a percentage of sales from companies associated with iGive will go to the foundation. The Alex Foundation also has a \u201cDonate\u201d button linked to PayPal. Visit\u00a0The Alex Foundation\u00a0and click on the \u201cSupport Us\u201d link for more information. Read more about the lab at The Alex Foundation Facebook page and at The Alex Foundation Twitter account.","url":"https:\/\/lafeber.com\/pet-birds\/author\/irene\/"}]}},"_links":{"self":[{"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/posts\/37941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/comments?post=37941"}],"version-history":[{"count":4,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/posts\/37941\/revisions"}],"predecessor-version":[{"id":45781,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/posts\/37941\/revisions\/45781"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/media\/37942"}],"wp:attachment":[{"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/media?parent=37941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/categories?post=37941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lafeber.com\/pet-birds\/wp-json\/wp\/v2\/tags?post=37941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}