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- 6McMillan, Neil
- 5Nicoladis, E.
- 5Spetch, Marcia L.
- 5Sturdy, Christopher B.
- 4Hahn, Allison H.
- 3Campbell, Kimberley A.
This study investigated the extent to which people can develop a global representation of local environments through across-boundary navigation. Participants learned objects’ locations in two misaligned rectangular rooms in an immersive virtual environment. After learning, they adopted a local...
Selective Resetting Position and Heading Estimations While Driving in a Large-Scale Immersive Virtual EnvironmentDownload
Two experiments investigated how self-motion cues and landmarks interact in determining a human’s position and heading estimations while driving in a large-scale virtual environment by controlling a gaming wheel and pedals. In an immersive virtual city, participants learned the locations of...
The effects of cue placement on the relative dominance of boundaries and landmark arrays in goal localizationDownload
Two types of visual features are identified as reference points used by individuals to encode locations: surface-based boundaries and discrete-object-based landmarks. Previous research show that learning locations relative to a boundary can overshadow learning relative to a landmark, but not...
Sex differences have been identified in a number of black-capped chickadee vocalizations and in the chick-a-dee calls of other chickadee species [i.e., Carolina chickadees (Poecile carolinensis)]. In the current study, 12 acoustic features in black-capped chickadee chick-a-dee calls were...
Talk to me: Parental linguistic practices may hold the key to reducing incidence of language impairment and delay among multiple birth childrenDownload
Researchers have long known that multiple-birth children are predisposed toward language impairment and delay. Proposed explanations include the frequentlow birth weight of multiple birth children, unspecified genetic factors, and differences in the linguistic environment that seem to correlate...
Category perception, as Herrnstein (1990) defined it, is a powerful and pervasive cognitive ability possessed by every species in which it has been adequately tested. We have studied category perception of vocal communication signals in songbirds for over 20 years. Our first studies provided us...
Chickadees produce many vocalizations, including chick-a-dee calls which they use as a mobbing call in the presence of predators. Previous research has shown that chickadees produce more D notes in their mobbing calls in response to high-threat predators compared to low-threat predators, and may...
If speech-language pathologists are to identify bilingual children in need of intervention, it is essential to understand the normal variations of bilingual acquisition and how it is the same or different from monolingual development. In this paper, we present an overview of the basics of...
Evolutionary psychologists have argued that the emergence of language was associated with reducing direct physical aggression and easing social functioning in small groups. If this is so, then males should use verbal or indirect aggression more frequently than females since they engage in more...
Features of Male- and Female-Produced Song in Black-Capped Chickadees (Poecile Atricapillus) Change Between Seasons
Features of Male- and Female-Produced Song in Black-Capped Chickadees (Poecile Atricapillus) Change Between SeasonsDownload
Of the 10 000 or so known avian species, nearly half belong to the clade Passeri. Also called Oscines, or songbirds, birds in this group are unique in that they possess a morphologically complex vocal organ, the syrinx, which facilitates the production of complex and diverse vocalizations,...