Short-Term Memory and Effects of Proactive Interference on Heart Rate

1982 ◽  
Vol 51 (2) ◽  
pp. 463-470
Author(s):  
Pierre-Philippe Morin ◽  
Raymond Ducharme ◽  
Harold Flash

40 subjects were required to memorize different word lists. Each list contained three words, and each list corresponded to one trial. The Brown-Peterson paradigm was employed to induce proactive memory interference. For the experimental group the first three lists belonged to a negative affective encoding category, while the fourth belonged to a different encoding category. The control subjects memorized words from mixed encoding categories. In the experimental group proactive interference built up over trials with the same encoding category of words, resulting in a poorer performance at recall, during the second and third trials, and progressive decrease in heart rate. On the fourth trial of the Brown-Peterson task, proactive interference ceased, resulting in better recall than the previous interference trials, concomitantly with an increase in heart rate. These results are discussed within the context of Lacey's hypothesis, according to which, heart rate should increase with cognitive activity requiring rejection of environmental stimuli.

1974 ◽  
Vol 17 (3) ◽  
pp. 426-431 ◽  
Author(s):  
Harry W. Hoemann ◽  
Carol E. Andrews ◽  
Donald V. DeRosa

Thirty-seven deaf and 38 hearing children, ages eight to 12, were tested in a short-term memory task. Special interest focused on the build-up and release of proactive interference (PI). Both groups showed PI when the items were drawn from the same conceptual class of animals. In addition, experimental groups of deaf and hearing subjects showed a release from PI when shifted to a set of items drawn from a different category on the last trial. It was concluded that deaf children encode categorically in short-term memory (suggesting a normally functioning ability to think abstractly and to process information without acoustic mediators).


Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Abdullah Alharbi ◽  
Wael Alosaimi ◽  
Radhya Sahal ◽  
Hager Saleh

Low heart rate causes a risk of death, heart disease, and cardiovascular diseases. Therefore, monitoring the heart rate is critical because of the heart’s function to discover its irregularity to detect the health problems early. Rapid technological advancement (e.g., artificial intelligence and stream processing technologies) allows healthcare sectors to consolidate and analyze massive health-based data to discover risks by making more accurate predictions. Therefore, this work proposes a real-time prediction system for heart rate, which helps the medical care providers and patients avoid heart rate risk in real time. The proposed system consists of two phases, namely, an offline phase and an online phase. The offline phase targets developing the model using different forecasting techniques to find the lowest root mean square error. The heart rate time-series dataset is extracted from Medical Information Mart for Intensive Care (MIMIC-II). Recurrent neural network (RNN), long short-term memory (LSTM), gated recurrent units (GRU), and bidirectional long short-term memory (BI-LSTM) are applied to heart rate time series. For the online phase, Apache Kafka and Apache Spark have been used to predict the heart rate in advance based on the best developed model. According to the experimental results, the GRU with three layers has recorded the best performance. Consequently, GRU with three layers has been used to predict heart rate 5 minutes in advance.


2017 ◽  
Vol 13 (4) ◽  
pp. 56-63 ◽  
Author(s):  
E.A. Savina ◽  
I.A. Savenkova ◽  
I.V. Shchekotikhina ◽  
A.M. Gul'yants

This article discusses the results of experimental study aimed at investigating the effect of games with rules on voluntary regulation of preschool children. The following components of voluntary regulation were studied: short-term and working memory, verbal interference control, the ability to follow verbal instruction, and knowledge of rules of conduct. One hundred and twenty 6—7-year-old children participated in this study. After the intervention, children in experimental group improved their knowledge of rules of conduct, short-term memory for numbers, verbal interference, and the ability to follow verbal instruction when executing a visual-motor integration task. Children in the control group also improved their verbal interference ability and short-term memory for numbers and words. However, size effects were smaller than in the experimental group.


Sign in / Sign up

Export Citation Format

Share Document