Translation of "cornerstone" into Icelandic

In Far West, Missouri, cornerstones for a temple had been laid, only to be abandoned.

Hornsteinn hafði verið lagður að musteri í Far West, Missouri, sem síðan þurfti að yfirgefa.

PP6 Accurate timing is a cornerstone of psychological experiments, and this chapter explores the techniques PsychoPy uses to ensure millisecond precision. It distinguishes between frame-based timing (synchronizing stimuli with the screen’s refresh rate) and time-based timing (using a clock for precise intervals).

The chapter explains how to avoid common pitfalls that can affect timing accuracy, such as lag in stimulus presentation or delays in response recording. For advanced users, there is a discussion on synchronizing PsychoPy with external hardware like response boxes, eye trackers, and physiological measurement devices.