WordNet
- the act of gripping something firmly with the hands (or the tentacles) (同)taking hold, seizing, prehension
- understanding with difficulty; "the lecture was beyond his most strenuous graspings"
PrepTutorEJDIC
- 欲深い(greedy) / しっかりつかむ,ぎゅっと握る
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/08/01 14:29:14」(JST)
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For other uses, see Grasp (disambiguation).
A grasp is an act of taking, holding or seizing firmly with (or as if with) the hand. An example of a grasp is the handshake, wherein two people grasp one of each other's like hands.
In zoology particularly, prehensility is the quality of an appendage or organ that has adapted for grasping or holding.
Development
The development of grasping is an important component of child development stages, wherein the main types of grasps are:
- Raking grasp, wherein the fingers, but not including the thumb, do all the holding.[1]
- Palmar grasp, wherein the fingers squeeze against the palm, instead of against themselves as in the raking grasp.[1] Children are usually able to use a palmar grasp by the age of 6 months.[2][3]
- Pincer grasp wherein the pointer finger and the thumb squeeze to grasp an object.[1] Children are usually able to use a pincer grasp by the age of 9 to 10 months.[2][3]
Reflex
Grasp reflex of a 5 month old baby boy
The palmar grasp reflex (sometimes simply called grasp reflex) is among the primitive reflexes and appears at birth and persists until five or six months of age.[4] When an object is placed in the infant's hand and strokes their palm, the fingers will close and they will grasp it. The grip is strong but unpredictable; though it may be able to support the child's weight, they may also release their grip suddenly and without warning. The reverse motion can be induced by stroking the back or side of the hand.
References
- ^ a b c Page 176, section "Grasp" in: Kay Alicyn Ferrell (2011). Reach Out and Teach: Helping Your Child Who Is Visually Impaired Learn and Grow. Lightning Source UK Ltd. ISBN 0-89128-457-5.
- ^ a b Seminars in child and adolescent psychiatry (second edition) Ed. Simon G. Gowers. Royal College of Psychiatrists (2005) ISBN 1-904671-13-6
- ^ a b Laura E. Berk (2012). Infants and children: Prenatal through middle childhood. Allyn & Bacon.
- ^ "C Section Photo Shows Baby Grabbing Doctor's Hand From Inside The Womb". Blisstree.com.
UpToDate Contents
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English Journal
- One hand, two objects: Emergence of affordance in contexts.
- Borghi AM, Flumini A, Natraj N, Wheaton LA.SourceDepartment of Psychology, University of Bologna, Italy; Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
- Brain and cognition.Brain Cogn.2012 Oct;80(1):64-73. Epub 2012 May 25.
- Studies on affordances typically focus on single objects. We investigated whether affordances are modulated by the context, defined by the relation between two objects and a hand. Participants were presented with pictures displaying two manipulable objects linked by a functional (knife-butter), a sp
- PMID 22634033
- Constraint-induced movement therapy alters cerebral blood flow in subacute post-stroke patients.
- Treger I, Aidinof L, Lehrer H, Kalichman L.SourceFrom the Loewenstein Rehabilitation Hospital (IT, LA, HL), Ra'anana, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel (IT); and Department of Physical Therapy, Recanati School for Community Health Professions, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel (LK).
- American journal of physical medicine & rehabilitation / Association of Academic Physiatrists.Am J Phys Med Rehabil.2012 Sep;91(9):804-9.
- ABSTRACT: We attempted to evaluate patterns of hemispheric activation, according to cerebral blood flow changes, in post-stroke patients during motor tasks with and without arm restriction. Bilateral continuous middle cerebral artery monitoring of 6 healthy subjects (control group) and 28 post-strok
- PMID 22660371
- Relative size of numerical magnitude induces a size-contrast effect on the grip scaling of reach-to-grasp movements.
- Chiou RY, Wu DH, Tzeng OJ, Hung DL, Chang EC.SourceLaboratories for Cognitive Neuroscience, National Yang-Ming University, Taiwan; Macquarie Centre of Cognitive Sciences, Macquarie University, Australia.
- Cortex; a journal devoted to the study of the nervous system and behavior.Cortex.2012 Sep;48(8):1043-51. Epub 2011 Aug 10.
- Previous research found that quantitative information labelled on target objects of grasping movement modulates grip apertures. While the interaction between numerical cognition and sensorimotor control may reflect a general representation of magnitude underpinned by the parietal cortex, the nature
- PMID 21889134
Japanese Journal
- 確率共鳴を利用した触知覚感度向上効果を有する低侵襲手術用把持鉗子
- 末田 大和,服部 稔,澤田 紘幸 [他]
- 日本ロボット学会誌 = Journal of the Robotics Society of Japan 32(6), 566-573, 2014-07
- NAID 40020165466
- 天文学習のためのタンジブル学習環境に関するデザイン原則の検討(<特集>学習科学)
- 葛岡 英明,鈴木 靖幸,山下 直美,加藤 浩,鈴木 栄幸,久保田 善彦
- 科学教育研究 38(2), 65-74, 2014-06-10
- NAID 110009818452
- Exploring Dexterous Manipulation Workspaces with the iHY Hand (Special issue "Ingenious Mechanisms as the Origin of Robotics")
- Odhner Lael U.,Ma Raymond R.,Dollar Aaron M.
- 日本ロボット学会誌 = Journal of the Robotics Society of Japan 32(4), 318-322, 2014-05
- NAID 40020102796
- 民間プローブデータを用いたボトルネック交差点とその影響範囲の特定方法
- 橋本 浩良,水木 智英,高宮 進
- 土木技術資料 = Civil engineering journal : 土木技術の総合情報誌 56(5), 34-37, 2014-05
- NAID 40020078105
Related Links
- Noun, 1. grasping - understanding with difficulty; "the lecture was beyond his most strenuous graspings". discernment, savvy, understanding, apprehension - the cognitive condition of someone who understands; "he has virtually no ...
- To take hold of or seize firmly with or as if with the hand. 2. To clasp firmly with or as if with the hand. 3. To take hold of intellectually; comprehend. See Synonyms at apprehend. v.intr. 1. To make a motion of seizing, snatching, or clutching. 2.
- Synonyms for grasping at Thesaurus.com with free online thesaurus, antonyms, and definitions. Dictionary and Word of the Day.
Related Pictures
★リンクテーブル★
[★]
強制把握。強制把握反射
[★]
- 関
- grip strength