Visual working memory as the substrate for mental rotation: A replication.

An experimental study by Hyun and Luck suggests that object working memory, but not spatial working memory, is employed during mental rotation. In contrast, correlational research points to the relevance of spatial working memory in mental rotation. Considering these somewhat conflicting results and the fact that a small sample was acquired in the study of Hyun and Luck, a replication of their study was conducted.

The influence of the design of mental rotation trials on performance and possible differences between sexes: A theoretical review and experimental investigation.

Sex differences in mental rotation performance are one of the largest in cognitive psychology. Men outperform women by up to 1 in psychometric mental rotation tests, but it is often neglected that there are no or only small sex differences for chronometric tests. As both tests are supposed to measure the same ability, we suspect some features of the tests themselves to affect sex differences in performance.

Heartfulness in Vegans, Vegetarians, and Omnivores.

Background: The primary goal of this study was to investigate the relation between the choice of a vegan or vegetarian diet as a criterion of sustainability and the aspect of heartfulness. We also analyzed which demographic, diet-related, and mindfulness practice-related variables could predict the different facets of heartfulness.

Methods: In total, 419 persons participated.

Embodied Mental Rotation - Does It Affect Postural Stability?

The effect of different human body part stimuli in mental rotation tasks (MRTs) on postural stability was investigated in two dual-task experiments. There were significant differences within egocentric MRTs (Experiment 1, N = 46): Hand and foot stimuli tended to cause more body sway than whole-body figures and showed increased body sway for higher rotation angles in the MRTs. In object-based MRTs (Experiment 2, N = 109) different stimuli did not evoke different levels of body sway, but higher rotation angles led to higher body sway.

Pupillometry as a measure of cognitive load in mental rotation tasks with abstract and embodied figures.

We investigated sex differences in behavioral performance and cognitive load in chronometric mental rotation tasks with abstract and embodied figures. Eighty participants (44 females and 36 males) completed 126 items, which included cube figures, body postures, and human figures, which were all comparable in shape and color. Reaction time, accuracy, and cognitive load, measured by changes in pupil dilation, were analyzed.

Manual training of mental rotation performance: Visual representation of rotating figures is the main driver for improvements.

Studies have demonstrated that manual and mental rotation show common processes. Training studies have shown that a manual and concurrent visual rotation improves mental rotation performance. In this study, we separated the visual rotation from the manual rotation.

Are implicit affective evaluations related to mental rotation performance?

Conscious and unconscious emotions are related to mental rotation. In this study, we investigated if also unconscious emotional evaluations of the stimuli are related to mental rotation performance. 114 students (39 men, 75 women) solved implicit and explicit affective evaluations and a psychometric mental rotation test with cube and pellet figures.