About Explain What Makes a Voice Sound the Way It Does, From Vocal Folds to a Pitch Gene

How Measurement Error Attenuates a Correlation Toward Zero Layered Structure of the Vocal Fold: Cover, Ligament and Body Colocalization of GWAS and eQTL Signals Narrowing the ABCC9 Locus with African-Ancestry Pulse Pressure Data Telling Harmonics from Resonances on a Spectrum The Analysis Window in a Short-Time Fourier Transform Fixation: When Only One Allele Is Left in a Species An Acoustic Analysis Workflow From Recording to Measure Table Longer Vocal Tracts Lower and Crowd the Formants Correlation Does Not Imply Causation in Observational Voice Data Why F_0 Exists Only on Voiced Frames When Two Communities' Speech Converges, Listener Accuracy Collapses A Sustained Vowel versus Connected Speech as a Measurement Target Pulse Pressure as Systolic Minus Diastolic Blood Pressure Test-Retest Reliability of a Voice Measure Estimating Formants by Linear Predictive Coding Aliasing: What Sampling Too Slowly Does to a Signal The Association Effect Size β as Change per Copy of an Allele Classifying Point Frameshift Missense and Nonsense Mutations in Molecular Genetics Sex Differences in Vocal Tract Length Shift the Formants Why Within-Group Heritability Cannot Explain a Between-Group Difference Why Sex and Age Dominate Any Model of Voice Pitch Why Drift Is the Default Explanation for an Allele Frequency Difference Changing Pitch Without Changing Vowel Why LD Block Length Reflects Population History The Vocal Fold Lamina Propria Is Built from the Same Elastin and Collagen The Bernoulli Effect at the Glottis Pulls the Folds Closed Reading a Heritability Estimate Together With Its Confidence Interval Genetic Drift Effects Recording Conditions That Change an Acoustic Measurement Hertz versus Semitones as a Scale for Comparing Pitch Sexual Selection Hypotheses for Human Voice Pitch A Fixed Human Site Shared with Archaic Hominins Inferring the Ancestral Allele from an Outgroup Genome Standard Deviation Quantitative Traits: Measuring a Trait on a Continuous Scale Broad-Sense Heritability H^2 versus Narrow-Sense Heritability h^2 An Expression Signal That Lowers ABCC9 in the Adrenal Gland The Time-Frequency Resolution Trade-Off Checking Whether a Group Mean Difference Is Even Detectable Statistical Fine-Mapping: Posterior Inclusion Probabilities and Credible Sets What Would Be Needed to Prove the Mechanism How LPC Model Order Creates Formant Errors Why a Stiffer Artery Produces a Larger Pulse Pressure Within-Group versus Between-Group Variance in a Measured Trait How Tongue Height and Advancement Move F1 and F2 Association Signal versus Causal Variant under Linkage Disequilibrium The Glottal Source Produces a Harmonic Series Additive Genotype Coding as Allele Dosage 0 1 and 2 The Evidential Bar an Adaptive Hypothesis Has to Clear Tissue-Specific eQTLs and the GTEx Resource Loss-of-Function Intolerance Measured by LOEUF Vowel Height & Backness Why an Allele Fixed Before Our Species Cannot Explain Variation Today Measurement Error in an Acoustic Measure Reducing an F_0 Track to Summary Measures The Larynx as the Body's Sound Source The Fourier Transform: A Signal as a Sum of Sinusoids LD Score Regression for SNP Heritability and Confounding Reading ABCC9's Constraint Numbers as a Single Argument Confounding: When Sex, Age or Body Size Explains a Voice Correlation Founder Effects in a Small Founding Population How Membrane Potential Controls Vascular Smooth Muscle Tone Heritability Estimates Quantisation: Turning a Continuous Waveform Into Integers Ancestral versus Derived Alleles at a Site Why Heritability Describes a Population and Not a Person Twin and Family Designs for Estimating Heritability Effect Size in Standard Deviation Units in Educational Research Genetic Correlation r_g Between Two Traits Cortisol and DHEA Output from the Adrenal Cortex The Vocal Tract as a Quarter-Wavelength Resonating Tube Judging an Effect by Comparing It to the Trait's Own Scale Adrenal Hormone Regulation of Sodium and Potassium Ecological Fallacy: Reading a Group Average as an Individual Trait The Decibel as a Logarithmic Ratio Overlapping Distributions and the Limits of Predicting One Person GWAS Summary Statistics: What a Study Publishes per Variant The Sex Difference in Voice Pitch Dwarfs Every Other Known Effect Population Stratification and Correction with Genotype Principal Components Why a Genetic Correlation Is Not Evidence of a Causal Path The Documented Social Cost of Judging People by Their Speech Why a Deleteriousness Score Is Not a Phenotypic Effect Size Attenuation: How Noisy Measurement Shrinks a Correlation Adult Voice Pitch Drifts With Age in Opposite Directions by Sex Linkage Disequilibrium: D Prime and r^2 between Nearby Variants Statistical Significance Is Not the Same as Effect Size Intracellular ATP as the Gating Signal of a K_ATP Channel Decomposing Trait Variance into Genetic and Environmental Parts The Vocalis Muscle as the Active Element Inside the Vocal Fold Estimating F_0 by Autocorrelation Covariates: Removing Known Effects Before Testing a Variant Why a Heritability Estimate Changes With Sample and Setting Synonymous vs Non-synonymous Most Human Genetic Variation Lies Within Populations, Not Between Them LD Blocks Recombination Hotspots and Haplotype Structure Shimmer: Cycle-to-Cycle Variation in Amplitude Reading a Spectrogram of a Voice Why Most Sequence Variants Fall Outside Protein-Coding Exons A Microphone Turns Air Pressure Into a Voltage Acoustic Features and Fundamental Frequency of Speech Formant Frequencies Harmonics-to-Noise Ratio as a Measure of Voice Noise Jitter: Cycle-to-Cycle Variation in Period Converting an Effect Size in SD Units Back to Hertz Ion Channel Gating Elastin and Collagen as the Load-Bearing Proteins of the Arterial Wall Pearson Correlation Coefficient How a Population Bottleneck Reshapes Allele Frequencies Subglottal Pressure: The Lung Pressure That Drives Phonation Listeners Judge a Speaker From Learned Speech, Not Anatomy Reading the Credible Set at the ABCC9 Voice Pitch Locus Monotone versus Low-Pass Filtering as a Test of Which Cue Carries Dialect Is Learned From a Speech Community, Not Inherited Detecting Natural Selection from Genetic Variation Why Above-Chance Accuracy Does Not Make a Reliable Classifier The F1-F2 Vowel Space Three Candidate Mechanisms for One Voice Pitch Locus The GWAS Per-Variant Regression Test and Effect Size Multiple Testing Problem in Hypothesis Tests using Bonferroni Correction and Holm-Bonferroni Method Genome-Wide Significance and the 5 x 10^-8 Threshold Reverse Causation: Deciding Which Way the Arrow Points SUR2 and Kir6: The Pore and the Regulator of a K_ATP Channel How Potassium Permeability Sets the Resting Membrane Potential Why the Nearest Gene Is Not Automatically the Causal Gene Polygenic Architecture of Complex Traits and Missing Heritability Source-Filter Theory: The Buzz and the Tube Are Separate Systems Trans-Ancestry Fine-Mapping Using Differing LD Structures How a Paper Argues from a Statistical Hit to a Candidate Mechanism Minor Allele Frequency and Common versus Rare Variants CADD as an Integrated Deleteriousness Rank for a Variant The Myoelastic-Aerodynamic Theory of Phonation The Phonation Continuum from Breathy to Modal to Creaky Gene Flow as a Homogenizing Force on Allele Frequencies Sampling Rate and the Nyquist Limit Reading Manhattan and Q-Q Plots from a GWAS The Ratio of Nonsynonymous to Synonymous Substitution as a Test of Selection SNP Heritability h^2_SNP: the Share Common Variants Explain Octave Errors in Automatic Pitch Tracking Androgen Exposure at Puberty Remodels the Larynx Why Length, Mass and Tension Set the Fundamental Frequency Turning an Effect Estimate into a P-Value with Its Standard Error Why Ancestry Inference From a Voice Fails as an Inference