Periodic Cooling during Incubation Alters the Adrenocortical Response and Post-Hatch Growth in Zebra Finches

2020 ◽  
Author(s):  
Alexander M Rubin ◽  
Madeline P Choi ◽  
Alexander J Hoffman ◽  
Hannah E Beyl ◽  
Mary T Mendonça ◽  
...  
Keyword(s):  
Zebra Finches ◽  
Adrenocortical Response

Early life nutritional stress affects song learning but not underlying neural circuitry in zebra finches.

2020 ◽  
Vol 134 (3) ◽  
pp. 222-232
Author(s):  
Khulganaa Buyannemekh ◽  
Jessica B. Zito ◽  
Michelle L. Tomaszycki
Keyword(s):  
Early Life ◽  
Nutritional Stress ◽  
Neural Circuitry ◽  
Song Learning ◽  
Zebra Finches

ADRENOCORTICAL RESPONSE TO NON-EXHAUSTIVE MUSCULAR EXERCISE

1972 ◽  
Vol 70 (1) ◽  
pp. 73-80 ◽  
Author(s):  
L. W. Raymond ◽  
J. Sode ◽  
J. R. Tucci
Keyword(s):  
Treadmill Exercise ◽  
Serum Cortisol ◽  
Treadmill Walking ◽  
Exhaustive Exercise ◽  
Muscular Exercise ◽  
Adrenocortical Response ◽  
Exercise Tachycardia ◽  
Before And After

ABSTRACT Treadmill walking produced a prompt reduction in serum cortisol in 10 of 12 healthy military men. In contrast, two subjects, with pre-exercise tachycardia and apprehension, showed an increase in serum cortisol with treadmill exercise. In each group, the changes produced by exercise were still evident 30 and 60 minutes after the 30-minute treadmill walk. Urine collected before and after exercise contained similar amounts of 11-hydroxy- and 17-hydroxycorticosteroid material. These results may be explained by an increase in cortisol utilization during exercise and/or by a change in its distribution. The data indicate that in the absence of psychic factors, non-exhaustive exercise is not associated with pituitary adrenocortical activation.

Opioid modulation of cell proliferation in the ventricular zone of adult zebra finches (Taenopygia guttata)

2010 ◽  
Vol 24 (10) ◽  
pp. 3681-3695 ◽  
Author(s):  
Nazia Khurshid ◽  
L. Shahul Hameed ◽  
Sivaraj Mohanasundaram ◽  
Soumya Iyengar
Keyword(s):  
Cell Proliferation ◽  
Ventricular Zone ◽  
Zebra Finches ◽  
Taenopygia Guttata

scholarly journals Adding colour-realistic video images to audio playbacks increases stimulus engagement but does not enhance vocal learning in zebra finches

2021 ◽  
Author(s):  
Judith M. Varkevisser ◽  
Ralph Simon ◽  
Ezequiel Mendoza ◽  
Martin How ◽  
Idse van Hijlkema ◽  
...  
Keyword(s):  
Visual Cues ◽  
Sound Production ◽  
Visual Stimuli ◽  
Vocal Learning ◽  
Song Learning ◽  
Frame Rate ◽  
Zebra Finches ◽  
Video Content ◽  
Biologically Relevant ◽  
Video Images

AbstractBird song and human speech are learned early in life and for both cases engagement with live social tutors generally leads to better learning outcomes than passive audio-only exposure. Real-world tutor–tutee relations are normally not uni- but multimodal and observations suggest that visual cues related to sound production might enhance vocal learning. We tested this hypothesis by pairing appropriate, colour-realistic, high frame-rate videos of a singing adult male zebra finch tutor with song playbacks and presenting these stimuli to juvenile zebra finches (Taeniopygia guttata). Juveniles exposed to song playbacks combined with video presentation of a singing bird approached the stimulus more often and spent more time close to it than juveniles exposed to audio playback only or audio playback combined with pixelated and time-reversed videos. However, higher engagement with the realistic audio–visual stimuli was not predictive of better song learning. Thus, although multimodality increased stimulus engagement and biologically relevant video content was more salient than colour and movement equivalent videos, the higher engagement with the realistic audio–visual stimuli did not lead to enhanced vocal learning. Whether the lack of three-dimensionality of a video tutor and/or the lack of meaningful social interaction make them less suitable for facilitating song learning than audio–visual exposure to a live tutor remains to be tested.

Parvalbumin-positive projection neurons characterise the vocal premotor pathway in male, but not female, zebra finches

2001 ◽  
Vol 917 (2) ◽  
pp. 235-252 ◽  
Author(s):  
J Martin Wild ◽  
Matthew N Williams ◽  
Roderick A Suthers
Keyword(s):  
Projection Neurons ◽  
Zebra Finches ◽  
Positive Projection
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