After poring over around 40,000 pairs of images to spot a moving dot of light, Tombaugh, a precocious 24 years old at the time, discovered Pluto in 1930.
Digital images in June 2002 revealed Quaoar as a slowly moving dot of light.
Thus what this measures is how a single intensity, such as that of a moving dot, an edge, or a shadow, is varying its spatial position over time.
The present, after all, is just a moving dot on the continuum connecting the past to the future.
The instruction given to the subject was to pursue the moving dot as accurately as possible.
In the Cheng et al. [20] study, a moving dot was used as the control condition.
Each trace is the instantaneous eye position (in degrees) over time while following the moving dot on the PC screen.
For example, Westheimer and Wehrhahn [1] investigated the ability to discriminate differences in the direction of a moving dot from one presentation to the next.
Instead, mu suppression was similar across genders when participants observed the moving dot and between the perceived sex differences (same-sex vs. opposite-sex).
MEG measurements demonstrated that females produced stronger activation than males, in the primary motor cortex when viewing hand action relative to a moving dot [28].
