The effects of lateral midbrain lesions on evoked behavioral responses

Skultety, F. Miles; Chamberlain, Marcus

doi:10.1212/wnl.15.5.438

Cited by 8 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carli, Malliani, & Zanchetti (1962) reported that central gray lesions failed to block hypothalamically elicited "rage" in decerebrate cats, but testing of vocalization was prevented by tracheal intubation (Zanchetti, personal communication, 1971). Skultety and Chamberlain (1965) were unable to block hypothalamically elicited hissing, growling, or other elements or "rage" with lateral tegmental lesions, but their lesions were anterior to those of the present study.…”

Section: Defensive Threatcontrasting

confidence: 67%

Blockage and release of hypothalamically and naturally elicited aggressive behaviors in cats following midbrain lesions.

Berntson

1972

Journal of Comparative and Physiological Psychology

127

View full text Add to dashboard Cite

Hypothalamie thresholds for components of biting attack and threat were determined before and after midbrain lesions. Elicited attack and reflexive biting were blocked by medial tegmental destruction, while spontaneous attack and reflexive biting appeared after lateral tegmental lesions. Results suggested that the areas have independent and partially lateralized projections to lower sensorimotor mechanisms. Dorsal tegmental lesions blocked hypothalamically elicited ear flattening, lesions along a pathway from central gray to ventrolateral tegmentum blocked all vocalization, and no lesions affected pupillodilation or piloerection. Unilateral lesion effects suggested that pathways between hypothalamus and midbrain are partially crossed, but predominantly homolateral. The results support the view that the hypothalamus produces complex behaviors by acting caudally, through separate pathways, on sensorimotor mechanisms for different components.1 This report is based on a dissertation submitted to the University of Minnesota in partial fulfillment of requirements for the PhD degree.

show abstract

Section: Defensive Threatcontrasting

confidence: 67%