play with toy guns or weapons, or military action figures . See Fantasy play, Play, Play fighting (or rough-and-tumble play)
Category Archives: Uncategorized
Wakefulness
A state of readiness to respond indicated by resynchronisation of the EEG. See Behavioral stste, Behavioral state concept, Electroencephalogram (EEG), NREM sleep
Voxel
Elemental image unit that constitutes a three-dimensional magnetic resonance image . See Diffusion tensor imaging, Structural magnetic imaging (sMRI)
Vulnerability
An increased sensitivity to future adverse influences, often as a result of previous adverse experiences or health problems. Individuals with fewer social and psychological resources are hypothesized to be more likely to experience social stress when exposed to adverse circumstances, and so are more vulnerable than those with greater resources. See Biological risk factor, Coping, …
Vowels
Sounds like ‚aaee‚aa or ‚aaoo√Æ‚aa produced without full closer of the oral passage See Articulatory quadrilateral, Consonants, Diagraph, Vowel-to-consonant ratio
Vowel-to-consonant ratio
The proportion of vowel sounds to consonant sounds, and used as an index of speech development . See Consonants, Speech development, Vowels
Vocalic resonance
The vibration of the vocal cords during the production of a vowel produces resonant harmonic frequencies as in a pipe organ, where ‚aaharmonic‚aa means an integral multiple of the fundamental frequency . See Fundamental frequency (F0), Pitch
Vocal folds
See Glottal, Larynx
Vocal cords
See Larynx, Pharynx
Vitamin A (or retinol)
A vitamin in the maternal diet required for the development of the fatal retina. It is a component of cone pigments and termed 11-cis retinal . See Cones and rods, Retina, Retinoic acid (RA)