Visual Perception and Cognition in Infancy

By Carl Granrud | Go to book overview

3
What Can Rates of Development Tell Us About Underlying Mechanisms?

Richard Held Massachusetts Institute of Technology

Many investigators of visual development have attributed the appearance and/or changes in sensitivity of discrimination performance with age to neuronal developments in higher visual centers, the cortex in particular ( Atkinson, 1984; Bronson, 1974; Held, 1989; Maurer & Lewis, 1979). The attribution of function to cortex is convincing when based on knowledge of the visual nervous system and its development as studied in animal preparations ( Spillmann & Werner, 1990). Such knowledge provides grounds for asserting that many of the processes that account for properties of visual perception must go on in the cortex. For example, the neuronal equipment for analyzing stereoptic stimuli--single cells responsive to binocular disparities--is not found prior to cortex, but arguments of this kind do not necessarily prove that the changes essential for the development of such properties actually occur at the same loci in the cortex or other higher centers. As Banks and Shannon (this volume) and other investigators have argued, some of these developmental changes may be accounted for at least equally well by lower level (retinal or otherwise) increases in the efficiency of signal processing with resulting increases of the information processing capabilities (resolution and discrimination) of higher level systems that may not have changed. Colleagues and I have suggested just such a possibility in an earlier report on the oblique effect, discussed further on ( Gwiazda, Brill, Mohindra, & Held, 1978). How might decisions be made between these alternatives, given the state of current knowledge? I attempt here to answer this question.

Banks and Bennett ( 1988) applied the logic of sequential ideal-observer analysis, which Geisler spelled out in a recent review ( 1989), to the development

-75-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this book

This book has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited page

Bookmark this page
Visual Perception and Cognition in Infancy
Table of contents

Table of contents

  • Title Page iii
  • Contents v
  • Preface vii
  • 1: Spatial and Chromatic Visual Efficiency in Human Neonates 1
  • References 43
  • Acknowledgments 46
  • Acknowledgments 46
  • 2: Motion Nulling Techniques and Infant Color Vision 47
  • Acknowledgments 73
  • References 73
  • 3: What Can Rates of Development Tell Us About Underlying Mechanisms? 75
  • Acknowledgments 89
  • References 89
  • 4: Perception of Visual Direction in Human Infants 91
  • Acknowledgments 119
  • References 119
  • 5: Kinematic Foundations of Infant Visual Perception 121
  • 5: Kinematic Foundations of Infant Visual Perception 168
  • References 173
  • References 173
  • 6: Infants' Perception of Biomechanical Motions: Intrinsic Image and Knowledge-Based Constraints 175
  • Acknowledgments 214
  • References 214
  • 7: Infants' Sensitivity to Motion-Carried Information for Depth and Object Properties 215
  • Acknowledgments 234
  • References 234
  • 8: Future-Oriented Processes in Infancy: The Case of Visual Expectations 235
  • References 263
  • Conclusion 308
  • Acknowledgments 311
  • References 312
  • 10: Commentary: Extending the IdealObserver Approach 317
  • Acknowledgments 331
  • References 331
  • 11: Commentary: Cheers and Lamentations 333
  • References 344
  • Author Index 345
  • Subject Index 353
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Full screen
/ 362

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited passage

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.