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Related Concept Videos

The Menstrual Cycle01:19

The Menstrual Cycle

635
The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
635
Menses Phase01:18

Menses Phase

206
The uterine cycle begins with the menstrual phase, which is considered day one of the cycle and typically lasts about five days. This phase is characterized by the degeneration and shedding of the stratum functionalis, the functional layer of the endometrium.
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
206
Secretory Phase01:19

Secretory Phase

452
The secretory phase of the menstrual cycle, spanning from day 14 to 28 in a typical 28-day cycle, is a period of significant physiological changes in the female reproductive system. This phase commences immediately after ovulation and is characterized by the preparation of the endometrium for potential embryo implantation.
Following ovulation, the corpus luteum, a temporary endocrine structure, produces progesterone and estrogens. These hormones stimulate the growth and coiling of endometrial...
452
Ovarian Cycle01:27

Ovarian Cycle

907
The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
907
Proliferative Phase01:20

Proliferative Phase

313
The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
313
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

376
The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
376

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Updated: May 24, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

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Towards Predicting Menstrual Cycle Phases Exploiting Paralinguistic Features.

Anika A Spiesberger, Adria Mallol-Ragolta, Andreas Triantafyllopoulos

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 5, 2025
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    Summary
    This summary is machine-generated.

    This study used machine learning to analyze voice features and predict menstrual cycle phases. Speech analysis shows potential for non-invasive tracking of reproductive health.

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    Area of Science:

    • Reproductive biology
    • Speech science
    • Machine learning applications

    Background:

    • Growing interest in understanding the female body and reproductive health.
    • Previous research indicates voice changes occur during the menstrual cycle.
    • Existing studies often rely on comparative analysis for detecting voice differences.

    Purpose of the Study:

    • To explore machine learning methods for predicting menstrual cycle phases.
    • To analyze paralinguistic features in women's voices for phase prediction.
    • To assess the feasibility of using speech signals for menstrual cycle tracking.

    Main Methods:

    • Utilized voice data from 44 naturally cycling women.
    • Recorded speech samples during the menstrual and late follicular phases.
    • Extracted and analyzed eight paralinguistic features from voice recordings.
    • Applied machine learning algorithms for phase classification.

    Main Results:

    • Achieved 60% accuracy in classifying menstrual and late follicular phases.
    • Demonstrated the feasibility of predicting menstrual cycle phases using speech signals.
    • Highlighted the potential of paralinguistic features in voice analysis.

    Conclusions:

    • Machine learning analysis of voice paralinguistics offers a viable method for menstrual cycle phase prediction.
    • Speech signal analysis presents a promising avenue for non-invasive reproductive health monitoring.
    • Future research should explore personalized approaches and a wider range of cycle phases.