Determining the brain adaptations that underlie complex tool-use skills is an important
component in understanding the physiological bases of human material culture. It is argued …

Praxis, the ability to perform skilled or learned movements is essential for daily living.
Inability to perform such praxis movements is defined as apraxia. Apraxia can be further …

Apraxia is a symptom of cerebral lesions that has puzzled clinicians and researchers for
some 100 years. It has engendered many fascinating descriptions and a wide diversity of …

Determining the relationship between mechanisms involved in action planning and/or
execution is critical to understanding the neural bases of skilled behaviors, including tool …

In two patients with damage to the inferior portion of the left angular gyrus severely defective
imitation of meaningless gestures contrasted with preserved performance of meaningful …

Evidence from neuropsychology and neuroimaging implicates parietal and frontal areas of
the left cerebral hemisphere in the representation of skills involving the use of tools and …

OBJECTIVES--Defective imitation of meaningless gestures has repeatedly been
demonstrated in patients with apraxia and has been interpreted as being due to a deficit of …

Imitation of meaningless gestures was examined in patients with left brain damage (LBD),
right brain damage (RBD) and controls. In addition to imitation on the own body, patients …

Patients suffering from severe aphasia have to rely on non-verbal means of communication
to convey a message. However, to date it is not clear which patients are able to do so …

The inability to imitate gestures is an essential feature of apraxia. However, discrepancies
exist between clinical studies in apraxic patients and neuroimaging findings on imitation. We …