Central control of cardiovascular responses to injury

Author(s):  
Emrys Kirkman ◽  
Roderick A. Little
1963 ◽  
Vol 205 (4) ◽  
pp. 749-753 ◽  
Author(s):  
C. Y. Chai ◽  
Norman N. Share ◽  
S. C. Wang

Fifty-three vagotomized cats under chloralose were studied for cardiac augmentation, cardioacceleration, and vasomotor reaction on direct stimulation of the medulla oblongata and via reflex activations. Cardiac augmentation as well as other cardiovascular responses could be induced on stimulation of the dorsal medulla or the central cut end of the sciatic nerves, or on occlusion of the carotid arteries. The augmentation and other responses remained essentially unchanged regardless of the presence or absence of the rostral neural structures, including the hypothalamus. The results confirm and support the concept that a central control mechanism for vasomotor reaction and cardioacceleration as well as augmentation resides in the dorsal region of the lower brain stem.


2018 ◽  
Vol 32 (3) ◽  
pp. 97-105 ◽  
Author(s):  
Wangbing Shen ◽  
Yuan Yuan ◽  
Chaoying Tang ◽  
Chunhua Shi ◽  
Chang Liu ◽  
...  

Abstract. A considerable number of behavioral and neuroscientific studies on insight problem solving have revealed behavioral and neural correlates of the dynamic insight process; however, somatic correlates, particularly somatic precursors of creative insight, remain undetermined. To characterize the somatic precursor of spontaneous insight, 22 healthy volunteers were recruited to solve the compound remote associate (CRA) task in which a problem can be solved by either an insight or an analytic strategy. The participants’ peripheral nervous activities, particularly electrodermal and cardiovascular responses, were continuously monitored and separately measured. The results revealed a greater skin conductance magnitude for insight trials than for non-insight trials in the 4-s time span prior to problem solutions and two marginally significant correlations between pre-solution heart rate variability (HRV) and the solution time of insight trials. Our findings provide the first direct evidence that spontaneous insight in problem solving is a somatically peculiar process that is distinct from the stepwise process of analytic problem solving and can be represented by a special somatic precursor, which is a stronger pre-solution electrodermal activity and a correlation between problem solution time and certain HRV indicators such as the root mean square successive difference (RMSSD).


2014 ◽  
Author(s):  
Molly Ann Metz ◽  
Heidi Kane ◽  
Thery Prok ◽  
Christena Cleveland ◽  
Nancy Collins

2007 ◽  
Author(s):  
Sarah S. M. Townsend ◽  
Pamela J. Sawyer ◽  
Bettina J. Casad ◽  
Brenda Major ◽  
Wendy Berry Mendes

Author(s):  
Malcolm Petrie

Concentrating upon the years between the 1924 and 1929 general elections, which separated the first and second minority Labour governments, this chapter traces the rise of a modernised, national vision of Labour politics in Scotland. It considers first the reworking of understandings of sovereignty within the Labour movement, as the autonomy enjoyed by provincial trades councils was circumscribed, and notions of Labour as a confederation of working-class bodies, which could in places include the Communist Party, were replaced by a more hierarchical, national model. The electoral consequences of this shift are then considered, as greater central control was exercised over the selection of parliamentary candidates and the conduct of election campaigns. This chapter presents a study of the changing horizons of the political left in inter-war Scotland, analysing the declining importance of locality in the construction of radical political identities.


2020 ◽  
Author(s):  
Jonathan Gordils ◽  
Jeremy Jamieson

Background and Objectives: Social interactions involving personal disclosures are ubiquitous in social life and have important relational implications. A large body of research has documented positive outcomes from fruitful social interactions with amicable individuals, but less is known about how self-disclosing interactions with inimical interaction partners impacts individuals. Design and Methods: Participants engaged in an immersive social interaction task with a confederate (thought to be another participant) trained to behave amicably (Fast Friends) or inimically (Fast Foes). Cardiovascular responses were measured during the interaction and behavioral displays coded. Participants also reported on their subjective experiences of the interaction. Results: Participants assigned to interact in the Fast Foes condition reported more negative affect and threat appraisals, displayed more negative behaviors (i.e., agitation and anxiety), and exhibited physiological threat responses (and lower cardiac output in particular) compared to participants assigned to the Fast Friends condition. Conclusions: The novel paradigm demonstrates differential stress and affective outcomes between positive and negative self-disclosure situations across multiple channels, providing a more nuanced understanding of the processes associated with disclosing information about the self in social contexts.


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