The morphosyntactic decomposition and semantic composition of German compound words investigated by ERPs

In two experiments, we investigated the morphosyntactic decomposition and semantic composition of acoustically presented German compound words. A left-anterior negativity (LAN) was found in the ERP for gender incongruent, initial compound constituents although these constituents are syntactically irrelevant in German. This LAN provides online evidence for morphosyntactic decomposition. Experiment 1 showed also preliminary evidence for semantic composition, which was further investigated in Experiment 2 by comparing semantically transparent and opaque compounds. Transparent compounds elicited an increased negativity with a centroparietal maximum that occurred during the presentation of the head constituent. This negativity is suggested to reflect the semantic integration of compound constituents that is necessary after the constituents have been accessed separately.     

Examining a Gender Stereotype: Menopausal Women1

Two studies evaluated whether there was a subtype of menopausal women and, if so, how it differed from the global gender stereotype. Study 1 had participants generate items associated with women going through menopause, midlife women, and midlife men. Results showed that there is a menopausal women stereotype, and it is mostly negative in content. Moreover, this stereotype differs from the perceptions of women in general. Study 2 examined the effects of the menopausal women stereotype by employing the illusory correlation paradigm (e.g., McConnell, Sherman, & Hamilton, 1994) and found that participants greatly overestimated the number of times that menopausal women and negative moods appeared together. This research highlights the importance of examining stereotype subtypes and subgroups     

Preference for free or forced choice in Sumatran orangutans (Pongo abelii)

Empirical investigations of humans, pigeons, rats, and monkeys have indicated that these species will select free over forced choice, even when faced with identical outcomes. However, the same has yet to be quantitatively confirmed in nonhuman great apes. This experiment is the first systematic investigation of preference for free or forced choice in great apes using a paradigm in which extraneous variables are highly controlled. Three orangutans were given a choice of one of two virtual routes, one that provided a choice and one that did not via a touchscreen computer program. Choice of either route was rewarded with the same type and quantity of food. Initial results indicated a preference for free choice across all three participants. However, in two control conditions, orangutans' preferences varied, suggesting a weaker tendency to exercise choice than species previously tested. We suggest further investigation of preference for free and forced choice in orangutans and other great apes through alternative experimental paradigms that focus on increasing the fidelity of free and forced choice options.