Volume 2, Number 4, 2001
IN MEMORIAM
Peter W. Jusczyk: 1948–2001
Richard N. Aslin and David B. Pisoni

THEMATIC COLLECTION
What Is Ecological Validity? A Dimensional Analysis
Mark A. Schmuckler

The Concept of Ecological Validity: What Are Its Limitations and Is It Bad to Be Invalid?
David J. Lewkowicz

The Salience of Multimodal Sensory Stimulation in Early Development: Implications for the Issue of Ecological Validity
Robert Lickliter and Lorraine E. Bahrick

Perceiving the Real World: Infants’ Detection of and Memory for Social Information
Arlene S. Walker-Andrews and Lorraine E. Bahrick

RESEARCH ARTICLES
Relations Between Women’s Depressive Symptoms and Perceptions of Infant Distress Signals Varying in Pitch
Pamela Schuetze and Philip Sanford Zeskind

Neural Network Simulation of Infant Familiarization to Artificial Sentences: Rule-Like Behavior Without Explicit Rules and Variables
Thomas R. Shultz and Alan C. Bale

Role of Clinical Diagnosis and Medication Use in Effects of Maternal Depression on Infant-Directed Speech
Peter S. Kaplan, Jo-Anne Bachorowski, Moria J. Smoski, and Michael Zinser

Emotion Regulation Via Maternal Touch
Matthew J. Hertenstein and Joseph J. Campos

AUTHOR INDEX

CONTENTS INDEX