scholarly journals The effect of sympatholytic agents on the cardiovascular responses produced by the injection of acetylstrophanthidin into the cerebral ventricles

1969 ◽  
Vol 6 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Janice L. Stickney ◽  
Benedict R. Lucchesi
Keyword(s):  
Cardiovascular Responses ◽  
Cerebral Ventricles ◽  
Sympatholytic Agents

Replication of Internal Biological Surfaces

1972 ◽  
Vol 30 ◽  
pp. 308-309
Author(s):  
J. A. Nowell ◽  
J. Pangborn ◽  
W. S. Tyler
Keyword(s):  
Da Vinci ◽  
Leonardo Da Vinci ◽  
Rat Lung ◽  
Tubular Structures ◽  
Cerebral Ventricles ◽  
Internal Surfaces ◽  
Biological Surfaces ◽  
Dog Kidney ◽  
Lung And Kidney ◽  
Scanning Electron

Leonardo da Vinci in the 16th century, used injection replica techniques to study internal surfaces of the cerebral ventricles. Developments in replicating media have made it possible for modern morphologists to examine injection replicas of lung and kidney with the scanning electron microscope (SEM). Deeply concave surfaces and interrelationships to tubular structures are difficult to examine with the SEM. Injection replicas convert concavities to convexities and tubes to rods, overcoming these difficulties.Batson's plastic was injected into the renal artery of a horse kidney. Latex was injected into the pulmonary artery and cementex in the trachea of a cat. Following polymerization the tissues were removed by digestion in concentrated HCl. Slices of dog kidney were aldehyde fixed by immersion. Rat lung was aldehyde fixed by perfusion via the trachea at 30 cm H2O. Pieces of tissue 10 x 10 x 2 mm were critical point dried using CO2. Selected areas of replicas and tissues were coated with silver and gold and examined with the SEM.

In Search of Somatic Precursors of Spontaneous Insight

2018 ◽  
Vol 32 (3) ◽  
pp. 97-105 ◽  
Author(s):  
Wangbing Shen ◽  
Yuan Yuan ◽  
Chaoying Tang ◽  
Chunhua Shi ◽  
Chang Liu ◽  
...  
Keyword(s):  
Problem Solving ◽  
Direct Evidence ◽  
Electrodermal Activity ◽  
Cardiovascular Responses ◽  
Solution Time ◽  
Problem Solution ◽  
Insight Problem ◽  
Creative Insight ◽  
Insight Problem Solving ◽  
Analytic Problem

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).

The role of compassionate love in shaping psychological, behavioral, and cardiovascular responses to a partner in distress

2014 ◽  
Author(s):  
Molly Ann Metz ◽  
Heidi Kane ◽  
Thery Prok ◽  
Christena Cleveland ◽  
Nancy Collins
Keyword(s):  
Cardiovascular Responses ◽  
Compassionate Love

Anger and threat cardiovascular responses to interactions with a prejudiced other

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

Fast Foes: The affective consequences of interacting in a negative self-disclosure situation.

2020 ◽  
Author(s):  
Jonathan Gordils ◽  
Jeremy Jamieson
Keyword(s):  
Social Interactions ◽  
Social Life ◽  
Large Body ◽  
Cardiovascular Responses ◽  
Social Contexts ◽  
Subjective Experiences ◽  
Self Disclosure ◽  
Negative Behaviors ◽  
Nuanced Understanding ◽  
Affective Consequences

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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