Sasaki, T., Mann, R.P., Warren, K.N., Herbert, T., Wilson, T. & Biro, D. (in press). Personality and the collective: Bold homing pigeons occupy higher leadership ranks in flocks. Philosophical Transaction B


Sasaki, T. & Pratt, S.C. (2018). Psychology of a superorganism: collective decision-making by insect societies. Annual Review of Entomology, 

63:259-275. [pdf]


Charbonneau, D., Sasaki, T. & Dornhaus, A. (2017). Who needs ‘lazy’ workers?: Inactive workers act as a 'reserve' labor force replacing active workers, but inactive workers are not replaced when they are removed. PLoS ONE, 12(9):e0184074. [open access] 


Kenndy, P., Baron, G., Bitao, Q., Freitak, D., Helanterä, H., Hunt, E.R., Manfredini, F., O’Shea-Wheller, T., Patalano, S., Pull, C., Sasaki, T., Taylor, D., Wyatt, T. & Sumner, S. (2017). Why social insects hold the keys to biology’s big riddles. Trends Ecology and Evolution, 32(11): 861-872. [pdf]


Sasaki, T. & Biro, D. (2017). Cumulative culture can emerge from collective intelligence in animal groups. Nature Communications, 8, 15049 [open access]

[Science] [Telegraph] [Science Daily] [BBC World Service


Shaffer, Z., Sasaki, T., Haney, B., Janssen, M., Pratt, SC., & Fewell, JH. (2016). The foundress's dilemma: group selection for cooperation among queens of the harvester ant, Pogonomyrmex californicus. Scientific Reports, 6, 29828. [pdf

(Credit: Zachary Shaffer)



Sasaki, T., Janssen, M., Shaffer, Z., Pratt, SC. (2016). Exploration of unpredictable environments by networked groups. Current Zoology, 62(3), 52-214. [pdf]


Biro, D., Sasaki, T., & Portugal, SJ. (2016) Bringing a time-depth perspective to collective animal behaviour. Trends in Ecology and Evolution, 31(7), 550-562 [pdf]


Sasaki, T.*, Penick, CA.*, Shaffer, Z., Haight, KL., Pratt, SC., & Liebig, J. (2016). A simple behavioral model predicts the emergence of complex animal hierarchies. American Naturalist, 187(6), 765-775 [pdf] (* co-first authors)

[NC State News] [Science Daily

(Credit: Adrian Smith and Clint Penick) 



 Sasaki, T., Colling, B., Sonnenschein, A., May, MM., & Pratt, SC. (2015). Flexibility of collective decision making during house hunting in Temnothorax antsBehavioural Biology and Sociobiology 69, 707-714. [pdf]


Becker, DV., Mortensen, CR., Anderson, U., & Sasaki, T. (2014). Out of sight but not out of mind: Memory scanning is attuned to threatening faces. Evolutionary Psychology, 12(5), 901-912. [pdf]


Sasaki, T., Hölldobler, B., Millar, JG. & Pratt, SC. (2014). A context-dependent alarm signal in the ant Temnothorax rugatulusJournal of Experimental Biology, 217, 3229-3236. [pdf]


Sasaki, T. & Pratt, SC. (2013). Ants learn to rely on more informative attributes during decision making. Biology Letters, 9 (6). [pdf]

[The Daily Neuron] [Scientific American] [Science Daily]


Shaffer, Z., Sasaki, T. & Pratt, SC. (2013). Linear recruitment leads to allocation and flexibility in collective foraging by ants. Animal Behaviour, 86 (5), 967-975. [pdf]


Sasaki, T., Granovskiy, B., Mann, RP., Sumpter, DJT. & Pratt, SC. (2013). Ant colonies outperform individuals when a sensory discrimination task is difficult but not when it is easy. PNAS, 110(34), 13769-13773. [pdf]

 [The Wall Street Journal] [Nature] [National Geographic] [The Atlantic] [LA Times]


Pinter-Wollman, N., Hobson, E., Smith, J., Edelman, A., Shizuka, D., de Silva, S., Waters, J., Prager, S., Sasaki, T., Wittemyer, G., Fewell, J. & McDonald, D. (2013). The dynamics of animal social networks: analytical, conceptual, and theoretical advances. Behavioral Ecology, 25(2), 242-255 [pdf]

Sasaki, T. & Pratt, SC. (2012). Groups have a larger cognitive capacity than individuals. Current Biology 22(19), R827-R829. [pdf

[Science News] [Inside Science] [Onislam] [Science Daily]


Becker, DV., Mortensen, CR., Ackerman JM., Shapiro J., Anderson, U., Sasaki, T., Maner, J., Neuberg, S. & Kenrick, D. (2011). Signal detection on the battlefield: Priming self-protection vs. revenge-mindedness differentially modulates the detection of enemies and allies. PLoS ONE 6(9). [pdf]


Sasaki, T., Becker, DV. Janssen, M. & Neel, R. (2011). Does greater product information actually inform consumer decisions? The relationship between product information quantity and diversity of consumer decisions. Journal of Economic Psychology 32, 391-398. [pdf] 


Sasaki, T. & Pratt, S.C. (2011). Emergence of group rationality from irrational individuals. Behavioral Ecology 22, 276-281. [pdf]


Ackerman, J. M, Becker, D. V., Mortensen, C. R., Sasaki, T., Neuberg, S. L, & Kenrick, D. T. (2009). A pox on the mind: Disjunction of attention and memory in processing physical disfigurement. Journal of Experimental Social Psychology 45, 478-485. [pdf]



Sasaki, T. (2013) Arizona State University, Ph.D. dissertation, psychology of a 

superorganism, pp. 115 (awarded Glushko Dissertation Prize).

[precis] [a nice summary of my dissertation work by David Sumpter]