Stimulus duration and the human heart rate response

Smith, David B. D.; Strawbridge, Phyllis J.

doi:10.3758/bf03331412

Cited by 9 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Possibly this is the result of using brief stimuli of moderate intensity. Such an interpretation would conform with evidence that both longer duration (Smith & Strawbridge, 1968) and more intense stimuli (Davis et al, 1955;Lang & Hnatiow, 1962) tend to accentuate this aspect of the response. The possibility should be considered that this secondary deceleration represents the same process as the initial deceleratory phase, the former simply being completion of the latter.…”

Section: Discussionsupporting

confidence: 68%

“…The cross trial changes observed here agree essentially with earlier findings. The persistence of HR acceleration following an auditory stimulus has frequently been reported (Lang & Hnatiow, 1962;Meyers & Gullickson, 1967;Smith & Strawbridge, 1968). For the light flash the change from a predominantly deceleratory response on initial trials to a predominantly acceleratory one on later trials is similar to the cross trial changes observed by Geer (1964) to a visual CS.…”

Section: Discussionmentioning

confidence: 54%

“…The initial brief deceleration near stimulus onset has been noted before (Lang & Hnatiow, 1962;Chase & Graham, 1967;Smith & Strawbridge, 1968). In addition, it appears in the reported HR curves of most studies that have used stimuli of a weak or moderate intensity (Zeaman, Dearie, & Wegner, 1954;Davis et al, 1955;Uno & Grings, 1965;Meyers & Gullickson, 1967;Germana & Klein, 1968).…”

Section: Discussionmentioning

confidence: 98%

“…Finally, a secondary phase of acceleration with a peak at poststimulus intervals 13-17 is suggested by some of the response curves of Figures 1 and 2. Investigators (Lang & Hnatiow, 1962;Hord et al, 1965;Germana & Klein, 1968;Smith & Strawbridge, 1968), who have carried out sufficiently extended analyses to have observed such a component, have either reported this phase of the response or its presence can be detected in their published curves.…”

Section: Discussionmentioning

confidence: 99%

“…Meyers and Gullicksoii (1967) also reported this diphasic pattern but found that the only statistically reliable component to the first presentation of an unfamiliar stimulus was HR deceleration. Other studies (Uno & Grings, 1965;Smith & Strawbridge, 1968) interpreted their results in terms of the overall level of the response. Uno and Grings obtained HR curves that show overall HR acceleration to tones of 70, 80, and 90 db, and overall HR deceleration to 60 and 100 db.…”

mentioning

confidence: 99%

See 4 more Smart Citations

The Heart Rate Response to a Brief Auditory and Visual Stimulus

Smith

Strawbridge

1969

Psychophysiology

Self Cite

View full text Add to dashboard Cite

The adult heart rate (HR) response was studied in 18 male subjects following a series of 10 tones and 10 light flashes. Both stimuli were of moderate intensity (54 db and 8.0 ml) and had rise times of 30 milliseconds. The tone evoked a predominantly acceleratory response and no decrement with repetition. Initially, the light flash evoked a predominantly deceleratory response which changed to one of acceleration as the stimulus was repeated. Analysis of respiration revealed that an increase in rate and amplitude followed both stimuli and that the magnitude of respiratory changes did not diminish with stimulus repetition. Viewed according to Sokolov's criteria for identifying orienting, defensive, and adaptive responses the results support the conclusions that: (1) HR deceleration is a component of the orienting response; and (2) HR acceleration is neither an orienting, defensive, nor adaptive response but is largely secondary to respiratory changes. On the basis of the evidence, a tentative model of the HR response to simple auditory and visual stimuli is offered.

show abstract

Section: Discussionsupporting

confidence: 68%