Die Bedeutung der Sehhügel auf Grund von experimentellen und pathologischen Daten

Bechterew, W. v.

doi:10.1007/bf01928767

Cited by 11 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, it has long been recognized that complete bilateral removal of the neocortex, which necessarily destroys the neocortical sensory receiving areas, does not block the expression of autonomic responses and emotional behaviors evoked by sensory stimulation (Bechterev, 1887;Cannon and Britton, 1925;Bard and Rioch, 1937;Macht and Bard, 1942) nor the coupling, through aversive classical conditioning, of autonomic responses to relatively simple (i.e., undiscriminated) stimulus features (Pinto-Hamuy et al, 1963;Bloch-Rojas et al, 1964;DiCara et al, 1970). While there is conflicting evidence concerning the effects of decortication on the classical conditioning of somatomotor responses (Culler and Mettler, 1934;Girden et al, 1936;Bromiley, 1948;Bloch-Rojas et al, 1964), there is no indication that this possible effect of total removal of the cortex is due to damage to sensory cortex.…”

Section: Stimulimentioning

confidence: 99%

Subcortical efferent projections of the medial geniculate nucleus mediate emotional responses conditioned to acoustic stimuli

LeDoux¹,

Sakaguchi²,

Dj³

1984

J. Neurosci.

467

277

View full text Add to dashboard Cite

The purpose of this study was to identify the afferent link in the neural pathway which mediates emotional responses coupled to auditory stimuli. We evaluated whether autonomic and behavioral responses elicited by acoustic conditioned emotional stimuli are based on afferent information derived from the auditory cortex or from the auditory thalamic relay station, the medial geniculate nucleus (MG), in rats. The rat auditory cortex was defined through anterograde neuroanatomical tracing studies involving the injection of HRP into MG. Lesions were then placed in the auditory cortex or in MG. After 10 to 20 days the rats were subjected to classical fear conditioning trials involving the pairing of a pure tone with electric footshock. Changes in mean arterial pressure and heart rate and the duration of immobilization ("freezing") and drink suppression elicited by presentation during extinction trials (no footshock) of the acoustic conditioned emotional stimulus were measured. Auditory cortex lesions did not affect the magnitude of the mean arterial pressure or heart rate conditioned responses nor the duration of freezing or drink suppression. In contrast, lesions of MG suppressed the magnitude of both the autonomic and somatomotor (behavioral) conditioned emotional responses but did not affect either autonomic or somatic responses elicited by the footshock unconditioned stimulus. Lesions of the inferior colliculus, the primary source of afferent input to MG, replicated the effects of MG lesions. These findings demonstrate that lesions of MG and lower auditory centers, but not lesions of the auditory cortex, block autonomic and behavioral conditioned emotional responses coupled to acoustic stimuli and indicate that subcortical rather than cortical efferents of MG sustain these responses. Our concurrent observation that MG projects to several subcortical areas (central and lateral amygdala; caudate-putamen; ventromedial hypothalamus) involved in emotional behavior and autonomic function suggests hypotheses concerning subsequent links in this emotional processing pathway.

show abstract

Section: Stimulimentioning

confidence: 99%

Subcortical efferent projections of the medial geniculate nucleus mediate emotional responses conditioned to acoustic stimuli

LeDoux¹,

Sakaguchi²,

Dj³

1984

J. Neurosci.

467

277

View full text Add to dashboard Cite

show abstract

“…Jackson (1884) speculated that unilateral movements, such as limb movements and lower face movements, were rather voluntary movements (and thus more vulnerable to damage), whereas bilateral movements, such as movements of the upper face, were less vulnerable to damage because they belonged to a class of rather automatic movements (as cited by Morecraft et al, ). Furthermore, Bechterew () and Nothnagel () speculated in their work about the anatomical basis of the striking clinical observation of the dissociation between voluntary and emotional facial innervation after brain lesions.…”

Section: Historical Aspectsmentioning

confidence: 99%

Cortical control of facial expression

Müri

2016

J of Comparative Neurology

View full text Add to dashboard Cite

The present topical review deals with the motor control of facial expressions in humans. Recent studies in non-human primates and humans revealed that the motor control of facial expressions has a distributed neural representation. At least 5 cortical regions on the medial and lateral aspects of each hemisphere are involved: the primary motor cortex, the ventral lateral premotor cortex, the supplementary motor area on the medial wall, and, finally, the rostral and caudal cingulate cortex. The results of studies in humans and non-human primates suggest that the innervation of the face is bilaterally controlled for the upper part, and mainly contralaterally controlled for the lower part.Furthermore, the primary motor cortex, the ventral lateral premotor cortex, and the supplementary motor area are essential for the voluntary control of facial expressions.In contrast, the cingulate cortical areas are important for emotional expression, since they receive input from different structures of the limbic system.

show abstract

“…Bechterew (3,5) compiled evidence of the functions of the thalamus in the elaboration of expressive movement. On electrical stimulation of the thalamus he was able to elicit vocalization, respiratory and circulatory changes, erection of hair and other expressive movements from a variety of animals.…”

Section: The Integration Of Motor Patterns In the Thalamusmentioning

confidence: 99%

“…As early as 1822 Fodera reported that stimulation of a region between the level of the chiasma and the corpora quadrigemina induced cries and other emotional expressions which could not be elicited by stimulation of the cerebral hemispheres. Bechterew (3,4,6) was the first to collect evidence systematically to show that the thalamus is concerned in emotional expression. He described the production of a variety of expressive and visceral responses by stimulation of the thalamus, the expression of major emotions in the decorticate animal, and the appearance of spasmodic laughter and weeping after lesions involving the internal capsule in man (3).…”

mentioning

confidence: 99%

“…Bechterew (3,4,6) was the first to collect evidence systematically to show that the thalamus is concerned in emotional expression. He described the production of a variety of expressive and visceral responses by stimulation of the thalamus, the expression of major emotions in the decorticate animal, and the appearance of spasmodic laughter and weeping after lesions involving the internal capsule in man (3). His objective system of psychology had no place for a separate category of emotions.…”

mentioning

confidence: 99%

See 1 more Smart Citation