We examined adult age differences in the mental representation of situations and how readers update this representation during narrative comprehension. Older and younger adults memorized a building layout and then read narratives about a protagonist's actions in this building. The narratives contained critical sentences that described the protagonist moving from one room (the "source room") into another (the "goal room"), through an unmentioned path room. Each critical sentence was followed by a target sentence referring to an object in one of these rooms. Half of the target sentences explicitly mentioned the room containing this object and half did not. Reading time increased when the target object was more distant from the protagonist and when the room containing the object was not mentioned, suggesting that readers tracked the protagonist's location in the layout and allocated resources in order to maintain coherence in the situation model. Older adults' reading times differentially slowed with distance, and older readers who more accurately understood the narrative differentially slowed when the location of the target object was not mentioned. Finally, the more accurate readers (older and younger) slowed primarily when updating was most difficult (i.e., both when the room containing the object was not mentioned and for more distant objects). While these findings reveal qualitative similarity in how older and younger readers update spatially organized situation models, they also suggest that older readers must sometimes allocate more resources to this updating process in order to maintain comprehension.

The duration of outpatient mental health care and the level of self-help involvement are independently associated with less substance use and more positive social functioning. The provision of low intensity treatment for a longer time interval may be a cost-effective way to enhance substance abuse and psychiatric patients' long-term outcomes.

We examined whether older and younger adults share a schema for taking medication and whether instructions are better recalled when they are organized to match this schema. Experiment 1 examined age difference in schema organization. Participants sorted medication items (e.g., purpose, dose, possible side effects) according to similarity and then ordered the items to create a preferred instruction set. Cluster analysis of the sort and order data showed that younger and older adults share a schema for taking medication. Secondary regression analyses found that verbal ability (i.e., vocabulary scores) predicted individual differences in schema organization. In Experiment 2 participants recalled instructions that were either compatible with this schema in terms of grouping and order of items or were presented in nonpreferred orders. Younger participants remembered more information than did older participants, but both age groups better remembered and preferred the more schema-compatible instructions. Secondary analyses showed that recall was also positively related to verbal ability. Along with our earlier research, this study suggests that older and younger adults possess a schema for taking medication and that instructions that are compatible with this schema provide an environmental support that improves memory for medication information.

Community residential programs that have a more directed treatment orientation and that motivate patients to complete treatment have better substance use outcomes. As an increasingly important locus of specialized care, community residential facilities need to develop and maintain more differentiated and distinctive treatment orientations.

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