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Articles
https://doi.org/10.1038/s41562-020-00985-7
1Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA, USA. 2Department of Bioengineering, School of Engineering & Applied
Science, University of Pennsylvania, Philadelphia, PA, USA. 3Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania,
Philadelphia, PA, USA. 4Department of Philosophy, American University, Washington DC, USA. 5Department of Electrical & Systems Engineering, School
of Engineering & Applied Science, University of Pennsylvania, Philadelphia, PA, USA. 6Department of Neurology, Perelman School of Medicine, University
of Pennsylvania, Philadelphia, PA, USA. 7Department of Physics & Astronomy, College of Arts & Sciences, University of Pennsylvania, Philadelphia, PA,
USA. 8Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. 9Santa Fe Institute, Santa Fe, NM, USA.
✉e-mail: dsb@seas.upenn.edu
Curiosity is characterized by intrinsically motivated informa-
tion seeking1–3. The information sought while acting on one’s
curiosity often has no immediate, tangible benefit4–6. Despite
a lack of immediate benefits, the tendency to frequently experience
curiosity is associated with positive well-being7–9; curiosity facilitates
engagement with novel and challenging stimuli and, in the process,
the accrual of information and other resources that, although not
of immediate benefit, may have utility when encountering future
challenges10–12. And irrespective of its immediate or potential utility,
curiosity may well be valuable in itself13.
Characterizing how individuals seek information when
internally driven is fundamental to understanding how curios-
ity leads to the shoring up of resources that impact well-being.
Historico-philosophical studies tracing the use of the word ‘curios-
ity’ have identified styles of information seeking that span millen-
nia, cultures and languages14. The styles include the busybody and
the hunter. The information seeking of the busybody is marked by
a preference for sampling diverse concepts, characterized by “dis-
traction” and “never-dwelling anywhere”15 (p. 161). The busybody
will “frisk about, and rove about, at random, wherever they please”16
(section 34). The information seeking of the hunter is characterized
by sampling closely connected concepts. The hunter does not “turn
aside and follow every scent”17 (p. 520e) in the manner of the busy-
body. The hunter instead “wishes [they] had a few hundred help-
ers and good, well-trained hounds that [they] could drive into the
history of the human soul to round up [their] game”18 (p. 59) in a
targeted information search. Both styles are considered expressions
of curiosity, but there are individual differences in the extent to
which each style is expressed19. Tendencies to exhibit one style over
another will lead to the accumulation of different types of resources
over time. The busybody’s store of information will be more diverse
than that of the hunter, but the hunter’s information store will
contain greater depth on fewer subjects.
The open-ended, internally driven nature of curiosity makes
characterizing diverse information-seeking styles a daunting
endeavour. Existing approaches include the examination of sac-
cadic exploration of visual scenes and responses to trivia ques-
tions designed to evoke curiosity20,21. Experimental paradigms are
shedding light on curiosity, but they have been met with calls to
consider more complex forms of information seeking that occur
over extended timescales2. We claim that styles of information seek-
ing identified through historico-philosophical methodologies can
be readily accommodated within a knowledge-network-building
framework22. From this perspective, network nodes represent dis-
tinct concepts, and network edges represent the manner in which
the concepts are related. While seeking information, an individual
traverses edges on knowledge networks, moving from one con-
cept to the next. Some of the edges they traverse may have large
weights, indicating that the two concepts joined by the edge are
very similar, and some edges may have very small weights, indicat-
ing that the two concepts are virtually unrelated. Casting curiosity
as a knowledge-network-building practice reflects the intercon-
nectedness of informational units23 and allows an application of
the mathematical language of graph theory24,25 to quantify complex
manifestations of curious behaviour. The easily distracted busy-
body will create loose knowledge networks of sparsely connected,
seemingly unrelated concepts. In the parlance of graph theory, their
networks will have small edge weights, low clustering and high
characteristic path length. The more targeted hunter, in contrast,
will create tight networks consisting of closely connected concepts,
and their networks will have large edge weights, high clustering and
low characteristic path length (Fig. 1).
Hunters, busybodies and the knowledge network
building associated with deprivation curiosity
David M. Lydon-Staley 1,2, Dale Zhou 3, Ann Sizemore Blevins 2, Perry Zurn 4 and
Danielle S. Bassett 2,5,6,7,8,9 ✉
The open-ended and internally driven nature of curiosity makes characterizing the information seeking that accompanies it
a daunting endeavour. We use a historico-philosophical taxonomy of information seeking coupled with a knowledge network
building framework to capture styles of information-seeking in 149 participants as they explore Wikipedia for over 5 hours
spanning 21 days. We create knowledge networks in which nodes represent distinct concepts and edges represent the similar-
ity between concepts. We quantify the tightness of knowledge networks using graph theoretical indices and use a generative
model of network growth to explore mechanisms underlying information-seeking. Deprivation curiosity (the tendency to seek
information that eliminates knowledge gaps) is associated with the creation of relatively tight networks and a relatively greater
tendency to return to previously visited concepts. With this framework in hand, future research can readily quantify the infor-
mation seeking associated with curiosity.
NATURE HUMAN BEHAVIOUR | VOL 5 | MARCH 2021 | 327–336 | www.nature.com/nathumbehav 327
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