![Carey000103_1250005](https://www.harvardlds.org/wp-content/uploads/2020/09/Carey000103_1250005-1-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2020/09/Carey000103_1250005-1-300x300.jpg 300w)
Susan Carey
ProfessorSusan Carey's Page
Phone: 617-495-3896
Fax: 617-384-7944
![NancySoja](https://www.harvardlds.org/wp-content/uploads/2020/09/NancySoja-150x150.jpg 150w)
Nancy Soja
Lab ManagerPhone: 617-384-7918
![Debbie Zaitchik-Samet](https://www.harvardlds.org/wp-content/uploads/2016/12/debbie_zaitchik-samet-1.jpg 150w)
Debbie Zaitchik-Samet
Research FellowMany patients with Alzheimer’s disease – and even some healthy elderly – demonstrate conceptual errors that are characteristic of healthy preschool children (saying, for example, that the sun or the wind is alive). At Massachusetts General Hospital (Psychiatry/Gerontology), I investigate the mechanisms underlying these phenomena in adults, while running parallel studies with young children at Harvard. In both sets of studies, I focus on the effect of individual differences in Executive Function on the acquisition and loss of conceptual understanding.
![00100lPORTRAIT_00100_BURST20190811120959366_COVER](https://www.harvardlds.org/wp-content/uploads/2020/09/00100lPORTRAIT_00100_BURST20190811120959366_COVER-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2020/09/00100lPORTRAIT_00100_BURST20190811120959366_COVER-300x300.jpg 300w)
Peggy Li
Research Fellowscholar.harvard.edu/peggyli/home
My central research interest concerns elucidating the relationship between language and cognitive development - How does the emergence of various linguistic expressions in a child's language depend on the child's growing conceptual capacity? Conversely, in what ways does language acquisition itself make certain concepts more saliently available for problem solving? Furthermore, how might language play a role in the creation of new representational structures?
![3710C2D2-58F2-44E1-9972-7AC4437BCFA2](https://www.harvardlds.org/wp-content/uploads/2023/02/3710C2D2-58F2-44E1-9972-7AC4437BCFA2-150x150.jpeg 150w, https://www.harvardlds.org/wp-content/uploads/2023/02/3710C2D2-58F2-44E1-9972-7AC4437BCFA2-300x300.jpeg 300w)
Michael Huemer
Post Doc![IrenePic](https://www.harvardlds.org/wp-content/uploads/2023/01/IrenePic-e1715807179281-150x150.jpeg 150w, https://www.harvardlds.org/wp-content/uploads/2023/01/IrenePic-e1715807179281-691x691.jpeg 691w, https://www.harvardlds.org/wp-content/uploads/2023/01/IrenePic-e1715807179281-300x300.jpeg 300w)
Irene Canudas Grabolosa
Post Doc![Brian](https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-180x180.jpg 180w, https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-300x300.jpg 300w, https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-600x600.jpg 600w, https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-800x800.jpg 800w, https://www.harvardlds.org/wp-content/uploads/2017/12/Brian-300x300.jpg 300w)
Brian Leahy
Graduate StudentWhen do children correctly distinguish the possible from the impossible? Do children represent possibilities the same way adults do? How does their understanding of possibility relate to their understanding of probability? We must be sensitive to possibility and probability to navigate a world of uncertainty. My research uses psychological, philosophical, and linguistic methods to explore how these concepts develop.
![Lab Pic_Yiqiao](https://www.harvardlds.org/wp-content/uploads/2020/08/Lab-Pic_Yiqiao-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2020/08/Lab-Pic_Yiqiao-400x400.jpg 400w, https://www.harvardlds.org/wp-content/uploads/2020/08/Lab-Pic_Yiqiao-300x300.jpg 300w)
Yiqiao Wang
Graduate StudentMy research interest is in the origin and early development of human mathematical knowledge. I'm interested in how young children acquire number concepts, how they learn the meanings of number words, and how natural language may foster the development of their number concepts.
![IMG_2841](https://www.harvardlds.org/wp-content/uploads/2023/01/IMG_2841-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2023/01/IMG_2841-800x800.jpg 800w, https://www.harvardlds.org/wp-content/uploads/2023/01/IMG_2841-300x300.jpg 300w)
Katie Holmes
Research Assistant![Portrait Photo (Caden) (1)](https://www.harvardlds.org/wp-content/uploads/2023/01/Portrait-Photo-Caden-1-300x300.jpg 300w, https://www.harvardlds.org/wp-content/uploads/2023/01/Portrait-Photo-Caden-1-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2023/01/Portrait-Photo-Caden-1-300x300.jpg 300w, https://www.harvardlds.org/wp-content/uploads/2023/01/Portrait-Photo-Caden-1.jpg 495w)
Caden Li
Research Assistant![Foto Franzi](https://www.harvardlds.org/wp-content/uploads/2023/01/Foto-Franzi-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2023/01/Foto-Franzi-800x800.jpg 800w, https://www.harvardlds.org/wp-content/uploads/2023/01/Foto-Franzi-300x300.jpg 300w)
Franziska Griessenauer
Research Assistant![IMG_5655](https://www.harvardlds.org/wp-content/uploads/2023/02/IMG_5655-150x150.jpeg 150w, https://www.harvardlds.org/wp-content/uploads/2023/02/IMG_5655-800x800.jpeg 800w, https://www.harvardlds.org/wp-content/uploads/2023/02/IMG_5655-300x300.jpeg 300w)
Theo Schulz
Research Assistant![IMG-1570](https://www.harvardlds.org/wp-content/uploads/2023/02/IMG-1570-150x150.jpg 150w, https://www.harvardlds.org/wp-content/uploads/2023/02/IMG-1570-800x800.jpg 800w, https://www.harvardlds.org/wp-content/uploads/2023/02/IMG-1570-300x300.jpg 300w)
Tyler Neri
Research Assistant![Lal](https://www.harvardlds.org/wp-content/uploads/2023/01/Lal-150x150.png 150w, https://www.harvardlds.org/wp-content/uploads/2023/01/Lal-800x800.png 800w, https://www.harvardlds.org/wp-content/uploads/2023/01/Lal-300x300.png 300w)
Lal Kablan
Research Assistant![image0](https://www.harvardlds.org/wp-content/uploads/2023/02/image0-150x150.jpeg 150w, https://www.harvardlds.org/wp-content/uploads/2023/02/image0-800x800.jpeg 800w, https://www.harvardlds.org/wp-content/uploads/2023/02/image0-300x300.jpeg 300w)