scholarly journals The power of movement: Evidence for context-independent movement imitation.

2013 ◽  
Vol 142 (3) ◽  
pp. 763-773 ◽  
Author(s):  
Oliver Genschow ◽  
Arnd Florack ◽  
Michaela Wänke
Keyword(s):  
Movement Imitation

Instructions to attend to an observed action increase imitation in autistic adults

Autism ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 730-743 ◽  
Author(s):  
Emma Gowen ◽  
Andrius Vabalas ◽  
Alexander J Casson ◽  
Ellen Poliakoff
Keyword(s):  
Eye Movements ◽  
Visual Attention ◽  
Eye Movement ◽  
Hand Movement ◽  
Autistic Group ◽  
Instruction Condition ◽  
Following Instructions ◽  
Autistic Adults ◽  
Movement Imitation ◽  
Vertical Elevation

This study investigated whether reduced visual attention to an observed action might account for altered imitation in autistic adults. A total of 22 autistic and 22 non-autistic adults observed and then imitated videos of a hand producing sequences of movements that differed in vertical elevation while their hand and eye movements were recorded. Participants first performed a block of imitation trials with general instructions to imitate the action. They then performed a second block with explicit instructions to attend closely to the characteristics of the movement. Imitation was quantified according to how much participants modulated their movement between the different heights of the observed movements. In the general instruction condition, the autistic group modulated their movements significantly less compared to the non-autistic group. However, following instructions to attend to the movement, the autistic group showed equivalent imitation modulation to the non-autistic group. Eye movement recording showed that the autistic group spent significantly less time looking at the hand movement for both instruction conditions. These findings show that visual attention contributes to altered voluntary imitation in autistic individuals and have implications for therapies involving imitation as well as for autistic people’s ability to understand the actions of others.

scholarly journals Movement Imitation Therapy for Preterm Babies (MIT-PB): a Novel Approach to Improve the Neurodevelopmental Outcome of Infants at High-Risk for Cerebral Palsy

2019 ◽  
Vol 32 (4) ◽  
pp. 587-598 ◽  
Author(s):  
Marina Soloveichick ◽  
Peter B. Marschik ◽  
Ayala Gover ◽  
Michal Molad ◽  
Irena Kessel ◽  
...  
Keyword(s):  
Intervention Strategy ◽  
Neurodevelopmental Outcome ◽  
Intraventricular Haemorrhage ◽  
Preschool Age ◽  
Intervention Programme ◽  
Very Preterm Infants ◽  
Replication Studies ◽  
Cascading Effect ◽  
Preterm Babies ◽  
Movement Imitation

AbstractTo improve the neurodevelopmental outcome in infants with high grade intraventricular haemorrhage and cramped-synchronised (CS) general movements (GMs). Four very preterm infants with intraventricular haemorrhage grade III (n = 3) or intraventricular haemorrhage with apparent periventricular haemorrhagic infarction (n = 1) were diagnosed with CS GMs at 33 to 35 weeks postmenstrual age. A few days later MIT-PB [Movement Imitation Therapy for Preterm Babies], an early intervention programme, was commenced: the instant an infant showed CS movements, the therapist intervened by gently guiding the infant’s limbs so as to manoeuvre and smoothen the movements, thereby imitating normal GM sequences as closely as possible (at least for 10 min, 5 times a day, with increasing frequency over a period of 10 to 12 weeks). After a period of consistent CS GMs, the movements improved. At 14 weeks postterm age, the age specific GM pattern, fidgety movements, were normal in three infants, one infant had abnormal fidgety movements. At preschool age, all participants had a normal neurodevelopmental outcome. This report on four cases demonstrates that mimicking normal and variable GM sequences might have a positive cascading effect on neurodevelopment. The results need to be interpreted with caution and replication studies on larger samples are warranted. Nonetheless, this innovative approach may represent a first step into a new intervention strategy.

scholarly journals Imitating Unfamiliar Sequences of Connected Linear Motions

2005 ◽  
Vol 94 (4) ◽  
pp. 2832-2843 ◽  
Author(s):  
Yigal Agam ◽  
Daniel Bullock ◽  
Robert Sekuler
Keyword(s):  
Serial Position ◽  
Motor Behavior ◽  
Queuing Model ◽  
Position Effects ◽  
Effect Analysis ◽  
Time Correction ◽  
Straight Segments ◽  
Adjacent Segments ◽  
Serial Position Curves ◽  
Movement Imitation

A fundamental challenge in neuroscience is to understand the mechanisms by which multicomponent actions are represented and sequenced for production. We addressed this challenge with a movement-imitation task in which subjects viewed the quasi-random, two-dimensional movements of a disc and then used a stylus to reproduce the remembered trajectory. The stimulus disc moved along straight segments, which differed sufficiently from one another that it was possible to trace individual segments' fate in the resulting movement imitation. A biologically based segmentation algorithm decomposed each imitation into segments whose directions could be compared with those of homologous segments in the model. As the number of linked segments in a stimulus model grew from three to seven, imitation became less accurate, with segments more likely to be deleted, particularly from a model's final stages. When fidelity of imitation was assessed segment by segment, the resulting serial position curves showed a strong primacy effect and a moderate recency effect. Analysis of pairwise transposition errors revealed a striking preponderance of exchanges between adjacent segments that, along with the serial position effects, supports a competitive queuing model of sequencing. In analogy to results with verbal serial recall, repetition of one directed segment in the model reduced imitation quality. Results with longer stimulus models suggest that the segment-by-segment imitation generator may be supplemented in the final stages of imitation by an error-signal driven overlay that produces a late-course, real-time correction. Results are related to neural mechanisms that are known to support sequential motor behavior and working memory.

Simple movement imitation: Are kinematic features sufficient to map perceptions into actions?

2009 ◽  
Vol 69 (2) ◽  
pp. 360-368 ◽  
Author(s):  
Lior Noy ◽  
Raffaella Ida Rumiati ◽  
Tamar Flash
Keyword(s):  
Simple Movement ◽  
Movement Imitation

scholarly journals Effects of movement imitation training in Parkinson's disease: A virtual reality pilot study

2016 ◽  
Vol 26 ◽  
pp. 17-23 ◽  
Author(s):  
Verónica Robles-García ◽  
Yoanna Corral-Bergantiños ◽  
Nelson Espinosa ◽  
Carlos García-Sancho ◽  
Gabriel Sanmartín ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Virtual Reality ◽  
Pilot Study ◽  
Movement Imitation

scholarly journals Kinematic analysis of movement imitation in apraxia

Brain ◽  
1996 ◽  
Vol 119 (5) ◽  
pp. 1575-1586 ◽  
Author(s):  
J. Hermsdörfer ◽  
N. Mai ◽  
J. Spatt ◽  
C. Marquardt ◽  
R. Veltkamp ◽  
...  
Keyword(s):  
Kinematic Analysis ◽  
Movement Imitation
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