Working Memory and Facial Expression Recognition in Patients with Parkinson’s Disease

2014 ◽  
Vol 20 (5) ◽  
pp. 496-505 ◽  
Author(s):  
Laura Alonso-Recio ◽  
Pilar Martín-Plasencia ◽  
Ángela Loeches-Alonso ◽  
Juan M. Serrano-Rodríguez

AbstractFacial expression recognition impairment has been reported in Parkinson’s disease. While some authors have referred to specific emotional disabilities, others view them as secondary to executive deficits frequently described in the disease, such as working memory. The present study aims to analyze the relationship between working memory and facial expression recognition abilities in Parkinson’s disease. We observed 50 patients with Parkinson’s disease and 49 healthy controls by means of an n-back procedure with four types of stimuli: emotional facial expressions, gender, spatial locations, and non-sense syllables. Other executive and visuospatial neuropsychological tests were also administered. Results showed that Parkinson’s disease patients with high levels of disability performed worse than healthy individuals on the emotional facial expression and spatial location tasks. Moreover, spatial location task performance was correlated with executive neuropsychological scores, but emotional facial expression was not. Thus, working memory seems to be altered in Parkinson’s disease, particularly in tasks that involve the appreciation of spatial relationships in stimuli. Additionally, non-executive, facial emotional recognition difficulty seems to be present and related to disease progression. (JINS, 2014, 20, 1–10)

2007 ◽  
Vol 21 (2) ◽  
pp. 100-108 ◽  
Author(s):  
Michela Balconi ◽  
Claudio Lucchiari

Abstract. In this study we analyze whether facial expression recognition is marked by specific event-related potential (ERP) correlates and whether conscious and unconscious elaboration of emotional facial stimuli are qualitatively different processes. ERPs elicited by supraliminal and subliminal (10 ms) stimuli were recorded when subjects were viewing emotional facial expressions of four emotions or neutral stimuli. Two ERP effects (N2 and P3) were analyzed in terms of their peak amplitude and latency variations. An emotional specificity was observed for the negative deflection N2, whereas P3 was not affected by the content of the stimulus (emotional or neutral). Unaware information processing proved to be quite similar to aware processing in terms of peak morphology but not of latency. A major result of this research was that unconscious stimulation produced a more delayed peak variation than conscious stimulation did. Also, a more posterior distribution of the ERP was found for N2 as a function of emotional content of the stimulus. On the contrary, cortical lateralization (right/left) was not correlated to conscious/unconscious stimulation. The functional significance of our results is underlined in terms of subliminal effect and emotion recognition.


2003 ◽  
Vol 41 (8) ◽  
pp. 1047-1057 ◽  
Author(s):  
R. Sprengelmeyer ◽  
A.W. Young ◽  
K. Mahn ◽  
U. Schroeder ◽  
D. Woitalla ◽  
...  

Brain ◽  
2006 ◽  
Vol 129 (3) ◽  
pp. 707-717 ◽  
Author(s):  
Atsunobu Suzuki ◽  
Takahiro Hoshino ◽  
Kazuo Shigemasu ◽  
Mitsuru Kawamura

2015 ◽  
Vol 22 (9) ◽  
pp. 890-899 ◽  
Author(s):  
Giovanna Mioni ◽  
Lucia Meligrana ◽  
Simon Grondin ◽  
Francesco Perini ◽  
Luigi Bartolomei ◽  
...  

AbstractPrevious studies have demonstrated that emotional facial expressions alter temporal judgments. Moreover, while some studies conducted with Parkinson's disease (PD) patients suggest dysfunction in the recognition of emotional facial expression, others have shown a dysfunction in time perception. In the present study, we investigate the magnitude of temporal distortions caused by the presentation of emotional facial expressions (anger, shame, and neutral) in PD patients and controls. Twenty-five older adults with PD and 17 healthy older adults took part in the present study. PD patients were divided into two sub-groups, with and without mild cognitive impairment (MCI), based on their neuropsychological performance. Participants were tested with a time bisection task with standard intervals lasting 400 ms and 1600 ms. The effect of facial emotional stimuli on time perception was evident in all participants, yet the effect was greater for PD-MCI patients. Furthermore, PD-MCI patients were more likely to underestimate long and overestimate short temporal intervals than PD-non-MCI patients and controls. Temporal impairment in PD-MCI patients seem to be mainly caused by a memory dysfunction. (JINS, 2016, 22, 890–899)


2010 ◽  
Author(s):  
M. Fischer-Shofty ◽  
S. G. Shamay-Tsoorya ◽  
H. Harari ◽  
Y. Levkovitz

Fractals ◽  
2002 ◽  
Vol 10 (01) ◽  
pp. 47-52 ◽  
Author(s):  
TAKUMA TAKEHARA ◽  
FUMIO OCHIAI ◽  
NAOTO SUZUKI

Following the Mandelbrot's theory of fractals, many shapes and phenomena in nature have been suggested to be fractal. Even animal behavior and human physiological responses can also be represented as fractal. Here, we show the evidence that it is possible to apply the concept of fractals even to the facial expression recognition, which is one of the most important parts of human recognition. Rating data derived from judging morphed facial images were represented in the two-dimensional psychological space by multidimensional scaling of four different scales. The resultant perimeter of the structure of the emotion circumplex was fluctuated and was judged to have a fractal dimension of 1.18. The smaller the unit of measurement, the longer the length of the perimeter of the circumplex. In this study, we provide interdisciplinarily important evidence of fractality through its application to facial expression recognition.


1996 ◽  
Vol 2 (5) ◽  
pp. 383-391 ◽  
Author(s):  
Marcia C. Smith ◽  
Melissa K. Smith ◽  
Heiner Ellgring

AbstractSpontaneous and posed emotional facial expressions in individuals with Parkinson's disease (PD, n – 12) were compared with those of healthy age-matched controls (n = 12). The intensity and amount of facial expression in PD patients were expected to be reduced for spontaneous but not posed expressions. Emotional stimuli were video clips selected from films, 2–5 min in duration, designed to elicit feelings of happiness, sadness, fear, disgust, or anger. Facial movements were coded using Ekman and Friesen's (1978) Facial Action Coding System (FACS). In addition, participants rated their emotional experience on 9-point Likert scales. The PD group showed significantly less overall facial reactivity than did controls when viewing the films. The predicted Group X Condition (spontaneous vs. posed) interaction effect on smile intensity was found when PD participants with more severe disease were compared with those with milder disease and with controls. In contrast, ratings of emotional experience were similar for both groups. Depression was positively associated with emotion ratings, but not with measures of facial activity. Spontaneous facial expression appears to be selectively affected in PD, whereas posed expression and emotional experience remain relatively intact. (JINS, 1996, 2, 383–391.)


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