✦ LIBER ✦

Drinking behavior and jaw muscle (EMG) activity in the pigeon (Columba livia)

✍ Scribed by R. Bout; H. P. Zeigler

Publisher: Springer
Year: 1994
Tongue: English
Weight: 812 KB
Volume: 174
Category: Article
ISSN: 0340-7594
DOI: 10.1007/bf00191710

No coin nor oath required. For personal study only.

✦ Synopsis

The relation between jaw movements and jaw muscle activity was examined during two different types of drinking in pigeons: "tip" and "rictus" drinking. The amplitude and duration of jaw opening is greater for "rictus" than for "tip" drinking, but both types involve individual cycles of jaw-opening and closing movements, organized into bouts. Cycle duration increases gradually over the initial portion of the bout and is relatively constant thereafter.

Each drinking cycle is composed of an initial rapid jaw-opening component, a sustained opening phase of variable duration and a closing movement. The initial and final phases are related, respectively, to activity in the upper beak levator (protractor) and the jaw closer (adductor, pterygoid) muscles. The amplitude and duration of the sustained phase are correlated with the magnitude and duration of activity in the lower jaw opener (depressor). The kinematic and electromyographic organization of jaw movements during drinking is discussed in relation to the morphology of the jaw apparatus and the functional requirements of the behavior.

📜 SIMILAR VOLUMES

Jaw movement kinematics and jaw muscle (

Jaw movement kinematics and jaw muscle (EMG) activity during drinking in the pigeon(Columba livia)

✍ R. Bermejo; M. Remy; H. P. Zeigler 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 778 KB

Movements of the maxilla and mandible were recorded during drinking in the head-fixed pigeon and correlated with electromyographic activity in representative jaw muscle groups. During drinking, each jaw exhibits opening and closing movements along both the dorso-ventral and rostro-caudal axes which

Jaw muscle (EMG) activity and amplitude

Jaw muscle (EMG) activity and amplitude scaling of jaw movements during eating in pigeon (Columba livia)

✍ R. Bout; H. P. Zeigler 📂 Article 📅 1994 🏛 Springer 🌐 English ⚖ 1024 KB

During each phase of the pigeon's eating sequence, jaw opening amplitude (gape) is adjusted to the size of the food object; first prior to contact (Grasping), again in positioning the food (Stationing), and finally, during its movement through the oral cavity (Intraoral Transport). Part I of this st

Neuromuscular organization of avian flig

Neuromuscular organization of avian flight muscle: Morphology and contractile properties of motor units in the pectoralis (pars thoracicus) of pigeon (Columba livia)

✍ A.J. Sokoloff; J.M. Ryan; E. Valerie; D.S. Wilson; G.E. Goslow JR. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 731 KB

We used acid digestion and glycogen depletion to determine fascicle organization, fiber morphology, and physiological and anatomical features of individual motor units of an in-series muscle, the pectoralis (pars thoracicus) of the pigeon (Columba livia). Most fascicles are attached at one end to co

Loss of the circadian rhythms of locomot

Loss of the circadian rhythms of locomotor activity, food intake, and plasma melatonin concentration induced by constant bright light in the pigeon (Columba livia)

✍ Hideki Yamada; Itsuki Oshima; Koji Sato; Shizufumi Ebihara 📂 Article 📅 1988 🏛 Springer 🌐 English ⚖ 735 KB