41 research outputs found
The Mason Music & Memory Initiative (M3I)
Educational Objectives
1. Explain the benefits of a nonpharmacological intervention, such as the M3I, for persons with dementia.
2. Describe the work of M3I and its collaboration with students and faculty throughout the state.
3.Highlight lessons learned and future directions for the M3I
Developing a Personality Model for Speech-based Conversational Agents Using the Psycholexical Approach
We present the first systematic analysis of personality dimensions developed
specifically to describe the personality of speech-based conversational agents.
Following the psycholexical approach from psychology, we first report on a new
multi-method approach to collect potentially descriptive adjectives from 1) a
free description task in an online survey (228 unique descriptors), 2) an
interaction task in the lab (176 unique descriptors), and 3) a text analysis of
30,000 online reviews of conversational agents (Alexa, Google Assistant,
Cortana) (383 unique descriptors). We aggregate the results into a set of 349
adjectives, which are then rated by 744 people in an online survey. A factor
analysis reveals that the commonly used Big Five model for human personality
does not adequately describe agent personality. As an initial step to
developing a personality model, we propose alternative dimensions and discuss
implications for the design of agent personalities, personality-aware
personalisation, and future research.Comment: 14 pages, 2 figures, 3 tables, CHI'2
The genetic architecture of the human cerebral cortex
The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder