experimental units. Cognizant of these limitations, our objectives were: (1) to determine whether partial cutting reduces stand-level spruce beetle-caused mortality; (2) to compare postoutbreak stand characteristics between partially cut and unthinned stands; and (3) to examine the relationship between beetle-caused tree mortality and stand characteristics.

[This corrects the article on p. 65 in vol. 52, PMID: 28149394.].

Observers misperceive the orientation of a vertical rod when it is viewed in the context of a tilted frame (the rod and frame illusion, or RFI). The pitch and roll of the surrounding surfaces have independent influences on this illusion (Nelson and Prinzmetal, 2003). Experiment 1 measured the RFI when the pitch and roll of the floor that supported the observer was varied, and the observer was e...

The goals of this research were to (1) determine if there is agreement both amongst viewers, and between viewers and the performer, about the extent to which performances are authentic, and (2) ascertain whether or not performers and/or viewers can distinguish between authenticity and skill. An authentic performance is one that is natural or genuine, while an inauthentic performance feels faked...