Abhishek Jaywant

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Marc David Pell16
Sonja A. Kotz14
Andrew W Young10
Paul Ekman10
Silke Paulmann10
12Marc D. Pell
7Alice Cronin-Golomb
6Rachel Schwartz
5Sebastian Ocklenburg
5Bart De Boer

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2009
2016
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Emotional speech processing: disentangling the effects of prosody and semantic cues.
To inform how emotions in speech are implicitly processed and registered in memory, we compared how emotional prosody, emotional semantics, and both cues in tandem prime decisions about conjoined emotional faces. Fifty-two participants rendered facial affect decisions (Pell, 2005a), indicating whether a target face represented an emotion (happiness or… (More)
Randomized Controlled Trial of a Home-Based Action Observation Intervention to Improve Walking in Parkinson Disease.
OBJECTIVE To examine the feasibility and efficacy of a home-based gait observation intervention for improving walking in Parkinson disease (PD). DESIGN Participants were randomly assigned to an intervention or control condition. A baseline walking assessment, a training period at home, and a posttraining assessment were conducted. SETTING The laboratory… (More)
Listener impressions of speakers with Parkinson's disease.
Parkinson's disease (PD) has several negative effects on speech production and communication. However, few studies have looked at how speech patterns in PD contribute to linguistic and social impressions formed about PD patients from the perspective of listeners. In this study, discourse recordings elicited from nondemented PD speakers (n = 18) and healthy… (More)
Categorical processing of negative emotions from speech prosody
Everyday communication involves processing nonverbal emotional cues from auditory and visual stimuli. To characterize whether emotional meanings are processed with category-specificity from speech prosody and facial expressions, we employed a cross-modal priming task (the Facial Affect Decision Task; Pell, 2005a) using emotional stimuli with the same… (More)
Impaired perception of biological motion in Parkinson's disease.
OBJECTIVE We examined biological motion perception in Parkinson's disease (PD). Biological motion perception is related to one's own motor function and depends on the integrity of brain areas affected in PD, including posterior superior temporal sulcus. If deficits in biological motion perception exist, they may be specific to perceiving natural/fast… (More)
Normal discrimination of spatial frequency and contrast across visual hemifields in left-onset Parkinson’s disease: Evidence against perceptual hemifield biases
Individuals with Parkinson's disease (PD) with symptom onset on the left side of the body (LPD) show a mild type of left-sided visuospatial neglect, whereas those with right-onset (RPD) generally do not. The functional mechanisms underlying these observations are unknown. Two hypotheses are that the representation of left-space in LPD is either compressed… (More)
The effect of Parkinson's disease subgroups on verbal and nonverbal fluency.
BACKGROUND Parkinson's disease (PD) leads to deficits in executive function, including verbal and nonverbal fluency, as a result of compromised frontostriatal circuits. It is unknown whether deficits in verbal and nonverbal fluency in PD are driven by certain subgroups of patients, or how strategy use may facilitate performance. PARTICIPANTS Sixty-five… (More)
The contributions of prosody and semantic context in emotional speech processing
The present study examined the relative contributions of prosody and semantic context in the implicit processing of emotions from spoken language. In three separate tasks, we compared the degree to which happy and sad emotional prosody alone, emotional semantic context alone, and combined emotional prosody and semantic information would prime subsequent… (More)
Perception of Communicative and Non-communicative Motion-Defined Gestures in Parkinson's Disease.
OBJECTIVES Parkinson's disease (PD) is associated with deficits in social cognition and visual perception, but little is known about how the disease affects perception of socially complex biological motion, specifically motion-defined communicative and non-communicative gestures. We predicted that individuals with PD would perform more poorly than normal… (More)
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