Normative databases containing psycholinguistic variables are commonly used
to aid stimulus selection for investigations into language and other cognitive processes.
Norms exist for many languages, but not for Thai. The aim of the present research, there-
fore, was to obtain Thai normative data for the BOSS, a set of 480 high resolution color
photographic images of real objects (Brodeur et al. in PLoS ONE 5(5), 2010. https://doi.
org/10.1371/journal.pone.0010773). Norms were provided by 584 Thai university students
on eight dimensions: name agreement, object familiarity, visual complexity, category agree-
ment, image agreement, two types of manipulability (graspability and mimeability), and
age of acquisition. The results revealed comparatively similar levels of name agreement to
Brodeur et al. especially when unfamiliar items were factored out. The pattern of intercorre-
lations among the Thai psycholinguistic norms was comparable to previous studies and our
cross-linguistic correlations were robust for the same set of pictures in English and French.
Conjointly, the findings extend the relevancy of the BOSS to Thailand, supporting this photo-
graphic resource for investigations of language and other cognitive processes in monolingual,
multilingual, and brain-impaired populations.

EB00000003926K

Available

• Thai Norms for Name, Image, and Category Agreement, Object Familiarity, Visual Complexity, Manipulability, and Age of Acquisition for 480 Color Photographic Objects