Nearly 16 million Americans will be diagnosed with Alzheimer's disease or another type of dementia（痴呆） by 2050, according to the Alzheimer's Association. Symptoms（症状） include mood and behavior changes, disorientation（迷失方向） , memory loss and difficulty walking and speaking. The effects of anti-dementia drugs on patients' emotions and behaviors are inconsistent. Now, University of Missouri researchers have found that participation in TimeSlips, a drug-free, creative storytelling intervention, improves communication skills and positive affect in persons with dementia. TimeSlips is a nationally recognized storytelling program for people with dementia that encourages participants to use their imaginations to create short stories as a group.

Rather than relying on factual recall, participants respond verbally（口头地） to humorous images presented by facilitators（辅助商） who record the responses and read narratives（叙述，故事） to further develop or end the stories.

"TimeSlips provides rich, engaging opportunities for persons with dementia to interact with others while exercising their individual strengths," said Lorraine Phillips, assistant professor in the Sinclair School of Nursing. "It encourages participants to be actively involved and to experience moments of recognition, creation and celebration. Meaningful activities, such as TimeSlips, promote positive social environments that are central to person-centered care."

The storytelling program is an easy and affordable activity for long-term care facilities to implement（实施，落实） and allows caregivers to interact with multiple residents at a time, Phillips said.

"TimeSlips offers a stimulating alternative to typical activities in long-term care facilities," Phillips said. "It is an effective and simple option for care providers, especially those who lack resources or skills required for art, music or other creative interventions."

In the study, Phillips and her colleagues delivered the TimeSlips intervention in one-hour sessions, held twice weekly for six consecutive（连续的） weeks. The results included increased expressions of pleasure and initiation of social communication.

Improvements in participants' affect lasted several weeks following the final session. The intervention is acceptable for people with mild to moderate dementia, Phillips said.