Verbal Play as an Interactional Discourse Resource in Early Stage Alzheimer's Disease

Exploring Animal-Assisted Therapy for Creating Rich Communicative Environments and Targeting Communication Goals in Subacute Rehabilitation

PURPOSE

This study continues our research examining the use of animal-assisted therapy (AAT) for patients with acquired neurogenic communication disorders. AAT pairs an animal/handler team with a licensed therapist during sessions to target discipline-specific goals. Our original study focused on dog/handler teams paired with occupational and physical therapists during inpatient rehabilitation sessions. We documented multiple ways that AAT enriched the communicative environment, increasing the amount, complexity, and voluntariness of patient participation. This study focuses on speech-language pathology sessions, comparing communicative environments during AAT and traditional sessions. We also examined the speech-language pathologists' (SLPs') experiences in learning to plan for and target communication goals for patients during AAT sessions.

METHOD

This interpretive design combines ethnographic methods with participatory action research. We recruited 10 patients from an inpatient rehabilitation unit and two SLPs. We video-recorded 20 speech-language pathology sessions (one AAT and one traditional for each patient) and conducted 26 interviews. We consulted with SLPs on how to incorporate AAT into their treatment during their preparation time and used self-report measures to track changes in their planning time and confidence across the 6-week study.

FINDINGS

Across participants, AAT sessions provided richer communicative environments than traditional speech-language pathology sessions as measured by participant talk time, mean length of turns, and use of interactional discourse resources such as narrative use and playful language. The SLPs were rapidly able to adapt their clinical practice to incorporate AAT and displayed rapid and marked decreases in their initial planning time and increases in confidence.

CONCLUSION

AAT sessions created meaningful, rich, and complex communicative environments in a clinical space for participants to align with others around a shared interest.

Enriching Communicative Environments: Leveraging Advances in Neuroplasticity for Improving Outcomes in Neurogenic Communication Disorders

Purpose Research manipulating the complexity of housing environments for healthy and brain-damaged animals has offered strong, well-replicated evidence for the positive impacts in animal models of enriched environments on neuroplasticity and behavioral outcomes across the lifespan. This article reviews foundational work on environmental enrichment from the animal literature and considers how it relates to a line of research examining rich communicative environments among adults with aphasia, amnesia, and related cognitive-communication disorders. Method Drawing on the authors' own research and the broader literature, this article first presents a critical review of environmental complexity from the animal literature. Building on that animal research, the second section begins by defining rich communicative environments for humans (highlighting the combined effects of complexity, voluntariness, and experiential quality). It then introduces key frameworks for analyzing and designing rich communicative environments: distributed communication and functional systems along with sociocultural theories of learning and development in humans that support them. The final section provides an overview of Hengst's and Duff's basic and translational research, which has been designed to exploit the insights of sociocultural theories and research on environmental complexity. In particular, this research has aimed to enrich communicative interactions in clinical settings, to trace specific communicative resources that characterize such interactions, and to marshal rich communicative environments for therapeutic goals for individuals with aphasia and amnesia. Conclusions This article concludes by arguing that enriching and optimizing environments and experiences offers a very promising approach to rehabilitation efforts designed to enhance the reorganization of cognitive-communicative abilities after brain injury. Such interventions would require clinicians to use the principles outlined here to enrich communicative environments and to target distributed communication in functional systems (not the isolated language of individuals).

Involving People with Memory Loss in the Development of a Patient Handbook: A Strengths-Based Approach

A memory clinic used two key approaches in developing a patient and family handbook: partnership with people with memory loss and strengths-based social work practice. Social worker coeditors of the handbook intentionally sought guidance from people with mild to moderate memory loss regarding handbook content, design, and overall tone. A focus group, three sessions of a review group, e-mails, and personal interviews were used to solicit and review input from participants. The editors also incorporated content contributions in the form of essays, quotations, and an original poem from people with memory loss, alongside contributions from clinic staff, university faculty, and community service providers. People with memory loss provided input in five areas: response to a new diagnosis, coping with memory loss, messages to other newly diagnosed people and health care professionals, available community resources, and recommendations for handbook design. The development process reinforced a key message of the handbook: People with memory loss exhibit ongoing strengths, which help them participate in life. The process also ensured that the handbook content and design would be relevant and applicable to its users. The handbook is now regularly distributed as a primary patient education tool in the memory clinic and community programs.

Learning in Alzheimer's disease is facilitated by social interaction

Seminal work in Gary Van Hoesen's laboratory at Iowa in the early 1980s established that the hallmark neuropathology of Alzheimer's disease (AD; neurofibrillary tangles) had its first foothold in specific parts of the hippocampal formation and entorhinal cortex, effectively isolating the hippocampus from much of its input and output and causing the distinctive impairment of new learning that is the leading early characteristic of the disease (Hyman et al., 1984). The boundaries and conditions of the anterograde memory defect in patients with AD have been a topic of intense research interest ever since (e.g., Graham and Hodges, 1977; Nestor et al., 2006). For example, it has been shown that patients with AD may acquire some new semantic information through methods such as errorless learning, but learning under these conditions is typically slow and inefficient. Drawing on a learning paradigm (a collaborative referencing task) that was previously shown to induce robust and enduring learning in patients with hippocampal amnesia, we investigated whether this task would be effective in promoting new learning in patients with AD. We studied five women with early-stage AD and 10 demographically matched healthy comparison participants, each interacting with a familiar communication partner. AD pairs displayed significant and enduring learning across trials, with increased accuracy and decreased time to complete trials, in a manner indistinguishable from healthy comparison pairs, resulting in efficient and economical communication. The observed learning here most likely draws on neural resources outside the medial temporal lobes. These interactive communication sessions provide a potent learning environment with significant implications for memory intervention.

Older adults catch up to younger adults on a learning and memory task that involves collaborative social interaction

Learning and memory abilities tend to decline as people age. The current study examines the question of whether a learning situation that emphasises collaborative social interaction might help older persons overcome age-related learning and memory changes and thus perform similarly to younger persons. Younger and Older participants (n = 34 in each group) completed the Barrier Task (BT), a game-like social interaction where partners work together to develop labels for a set of abstract tangrams. Participants were also administered standard clinical neuropsychological measures of memory, on which the Older group showed expected inferiority to the Younger group. On the BT, the Older group performed less well than the Younger group early on, but as the task progressed, the performance of the Older group caught up and became statistically indistinguishable from that of the Younger group. These results can be taken to suggest that a learning milieu characterised by collaborative social interaction can attenuate some of the typical memory disadvantages associated with being older.

Verbal play as a discourse resource in the social interactions of older and younger communication pairs

Verbal play, or the playful manipulation of elements of language, is a pervasive component of social interaction, serving important interpersonal functions. We analyzed verbal play in the interactional discourse of ten healthy younger pairs and ten healthy older pairs as they completed a collaborative referencing task. A total of 1,893 verbal play episodes were coded. While there were no group differences in verbal play frequency, age-related differences in the quality and function of these episodes emerged. While older participants engaged in more complex, extended, and reciprocal episodes that supported the social nature of communicative interactions (e.g., teasing), younger participants were more likely to engage in verbal play episodes for the purpose of successful task completion. Despite these age-related variations in the deployment of verbal play, verbal play is a robust interactional discourse resource in healthy aging, highlighting an element of human cognition that does not appear to decline with age.