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This article links two formerly separate areas of research associated with Parkinson's disease (PD): speech and memory. It is proposed that speech deficits occur in PD not merely at the level of muscular control, as is commonly termed dysarthria, but also at the level of speech planning and programming, more aptly described as a form of apraxia. It is(More)
The issue of whether or not Parkinson's disease (PD) patients process information more slowly than normal is unresolved. Across a range of paradigms the evidence for slowing is scant, and many show no slowing. Even the results of a single experimental paradigm can be conflicting; some studies have obtained evidence for slowed memory scanning in subgroups of(More)
BACKGROUND The Internet holds promise for the delivery of evidence-based weight loss treatment to underserved populations. However, most studies do not reflect the more naturalistic and common ad libitum, or freely at will, use of the Internet. Randomized clinical trials, for example, typically include at least some direct contact with participants and(More)
Human food intake is regulated by physiological energy homeostatic mechanisms and hedonic mechanisms. These are affected by both very short-term and longer-term calorie restriction (CR). To date, there are parallel discussions in the literature that fail to integrate across these disciplines and topics. First, much of the available neuroimaging research(More)
INTRODUCTION The psychological influence of food (PFS) and perceived barriers to lifestyle change (PBLC) were considered as predictors of body mass index and website tool utilization (TU) in an online weight loss program. MATERIALS AND METHODOLOGY An archival analysis of all (N = 1361) overweight/obese (BMI M = 31.6 + 6.24 kg/m2), adult (M = 42.0 + 10.72(More)
Ingestive behavior is determined by a complex interaction between neurophysiologic and behavioral and environmental contributors that begins early in life. A better understanding of this complex regulatory system is needed to account for the multifaceted nature of human ingestion. Among the influences on ingestion, increased portion size (PS) 5 has been(More)