Yawning Research Articles

Orangutans catch scratching like we catch yawns

Orangutans catch scratching like we catch yawns

The Yawns Are Coming! by Christopher Eliopoulos

The Yawns Are Coming! by Christopher Eliopoulos

Chewing on gum alters the expression of contagious yawning

Chewing on gum alters the expression of contagious yawning

Methylphenidate-Induced Yawning Chasm in an Adolescent With Attention-Deficit/Hyperactivity Disorder That Resolved by Switching to Atomoxetine

Methylphenidate-Induced Yawning Chasm in an Adolescent With Attention-Deficit/Hyperactivity Disorder That Resolved by Switching to Atomoxetine

Perception of teachers regarding dental student's classroom behavior: A qualitative study

Introduction: Effective teaching is critical for student learning, especially in professional fields such as dentistry and dental hygiene and further, the effective behavior of educator must include organization, enthusiasm, empathy, rapport, clarity, general knowledge, and being available for students. Aim: The aim of this study is to assess teachers' perception regarding the final-year dental students' classroom behavior. Materials and Methods: Data for this qualitative study came from three focus group discussions (FGDs) with teachers teaching final-year BDS students. Participants (n = 15) represented the department of pedodontics, prosthodontics, and conservative and endodontic dentistry. FGD was conducted department wise with participation of five teachers each. A conceptual framework was prepared with seven questions for conducting FGD. Data from the FGD were analyzed by combining similar quotes into categories. Results: The data from the FGD led to the formation of seven categories with similar quotes in each category. Teachers reported about different behaviors of students depicting their lack of attention in lectures with the most common reason being: engaging in electronic gadgets, chatting with each other, yawning, and getting bored after 5 min of commencement of lecture. Teachers also mentioned the hectic schedule of students being one of the reasons for lack of attention. Suggestions of improving students' behavior were also reported which included different meditation techniques and change in classroom structure. Conclusion: The study reveals that teachers face a lot of inappropriate behavior from the students' side while delivering a lecture in the classroom. Different ways can be employed to increase the concentration of the students.

Emotional Regulation and Perceptual Motor Functioning in Opioid Addicts and Non-Opioid Individuals

Today in the era of modernization and globalization there has been significant restructuring of the society norms; and major changes are being seen in our day-to-day life. Common issues in these days are increasing nuclear family life style and emphasizing on materialistic prospects. All these changes have their own pros and cons. Changing shades of life in the contemporary world gave way to idyllic as well as harmful life style in individuals. Working parents, increased use of virtual social media, irrational following of western culture and lack of supporting guidance from elders are making our youth isolated, negative and specifically prone to drug addiction. One of the modem world's evils is drug abuse and intensified addiction. Governments all over the world dispatch constant efforts to reduce the drug trafficking by enacting strict laws and enforcing the same. But the corruption of human resource is still high due to drug addictions and the positive potentials of individuals are stunted. One such which has rooted strongly, is Opioid Addiction and for sure it is a hindrance for the progress of youth as well as the nation.Opioid Addiction: Opioid Addiction is characterized by individual inability to stop using opiates like heroin, smack, dodhe, afeem, brown sugar etc. and also presence of strong desire to take such drugs. It is mainly used initially as experimenting and for the sake of pleasure; and later to relieve cravings. The pattem of addiction starts primarily from abuse, gradually moving towards dependence or craving and ending up engaged in compulsion. This compulsion is harmful to an individual in psychological and biological modalities as well. It has been reported by Kosten and George (2002) that brain abnormalities are resulted from the use of heroin, morphine derived drugs. As per International Classification of Diseases (ICD)-IO (2009) any three or more following signs must be present to diagnose opioid withdrawal state - (i) Craving for an opioid drug, (ii) Rhinorrhea or sneezing, (iii) Lacrimation, (iv) Muscle aches or cramps, (v) Abdominal cramps, (vi) Nausea or vomiting, (v) Diarrhea, (vi) Pupillary dilatation, (vii) recurrent chills, (viii) Tachycardia or hypertension, (ix) Yawning, and (x) restless sleep. Chronic use of opioids may lead to weight loss, loss of libido, epilepsy, fatigue and skin changes.These drugs are derived from opium poppy which can be abused by inhaling through nose, injected into a vein or smoked in a cigarette. It is strongly believed that these drugs create euphoria, a feeling of intense pleasure in an individual. As a result, individuals become dependent upon them and when they need more of the opioids to get desired effect, they tend to have 'High Tolerance', i.e., the expansion of threshold in consuming drugs. Its intoxication can cause confusion, hallucinations, provide analgesia by binding to specific receptors in the brain, spinal cord, and to a lesser degree, the peripheral nervous system. When the opioid binds to the appropriate receptor, transmission of pain impulses is inhibited. The three main classes of these opioid receptors that constitute the endogenous opioid system are referred to as mu, delta, and kappa. This system is involved in many functions including modulation of the response to painful stimuli and stressors; reward and reinforcement; and homeostatic adaptive functions such as regulation of food, water, and temperature (Hilaire, 2010).Causes of addiction There are many reasons that are responsible for drug abuse. Kreek (2012) suggested that the internal as well as external factors are responsible including stress, social setting and addict mindset. Now-a-days, the very first reason for addiction among youth can be logically identified as relationship problems or breakups. They are engaged in relationships and when they find difficult to maintain it or doesn't get attention from the partner they start engaging themselves in drugs. Instead of facing or solving the problems, they disengage themselves and seek pleasure from substances. …

Women are more empathetic than men, yawning study suggests

Women are more empathetic than men, yawning study suggests

Prevalence of Symptoms of Temporomandibular Joint Disorder in Lattakia-Syria

The research aims to study the prevalence of the symptoms of TMJ disorder, TemporoMandibular Joint Disorder (TMJD), in Lattakia province – Syria. The research tool used is a form fora group of thoughtful questions related to the symptoms of TMJD. 450 questionnaire forms have been randomly distributed, by hand, to people in the ages of 15-60 years old, in different areas of the city. This allowed us to identify the prevalence of each symptom of TMJ disorders among each age group. We reached a conclusion that states that the prevalence of TMJD symptoms was the largest in males than females at a rate of 34.92%. Percentages showed a significant increase in the males category compared to a past research study done by the researcher Issa, his research showed a rate of 16% prevalence in males. This is attributable perhaps to the evolution of the predisposing conditions for the occurrence of such disorders. The most symptoms prevalent, in order, were the following: the inability to close the jaw after it opened, pain in the ear, hear sounds articular clicking and crepitation, pain when opening or wide yawn, pain of joints when chewing, the pain accompanying sounds, difficulty opening the mouth, pain around the jaws, deviation of the lower jaw.

Curious behaviours and what they say about you

Ever wondered why yawns are contagious, you can't tickle yourself and we don't speak from our bottoms? Neuroscientist Robert R. Provine has the answers

Yawning, sleep and dream

Yawning, sleep and dream

Haiti’s Elections: Parties Banned, Media Yawn

Haiti’s Elections: Parties Banned, Media Yawn

Olivier Walusinski (Ed.): The Mystery of Yawning in Physiology and Disease

Olivier Walusinski (Ed.): The Mystery of Yawning in Physiology and Disease

Yawning and thermoregulation

Yawning and thermoregulation

Yawning and thermoregulation in budgerigars: lack of support from results

Yawning and thermoregulation in budgerigars: lack of support from results

Penile erection and yawning induced by dopamine D2-like receptor agonists in rats: influence of strain and contribution of dopamine D2, but not D3 and D4 receptors

Dopamine (DA) is implicated in penile erection (PE) and yawning (YA) in rats through activation of D2-like receptors. However, the exact role of each subtype (D2, D3 and D4) of this receptor family in PE/YA is still not clearly elucidated. We recorded concomitantly PE and YA after treatment with agonists with various levels of selectivity for the different subtypes of D2-like receptors. In addition, we investigated the efficacy of antagonists with selective or preferential affinity for each of the three receptor subtypes to prevent apomorphine-induced PE and YA. Wistar rats were more sensitive than Long-Evans rats to the erectogenic activity of the nonselective DA agonist apomorphine (0.01-0.08 mg/kg), whereas Sprague-Dawley rats were insensitive. However, all the three strains were equally sensitive to apomorphine-induced YA. In Wistar rats, apomorphine (0.01-0.63 mg/kg), the D2/D3 agonists quinelorane and (+)7-OH-DPAT (0.000625-10 mg/kg) or PD 128,907 (0.01-10 mg/kg), but not the D4 agonists PD-168,077, RO-10-5824 and ABT-724 (0.04-0.63 mg/kg), produced PE and YA with bell-shaped dose-response curves. Similarly, ABT-724 and CP226-269 (another D4 agonist) failed to elicit PE and YA in Sprague-Dawley rats. Furthermore, in Wistar rats, PE and YA elicited by apomorphine (0.08 mg/kg) were not modified by selective D3 (S33084 and SB-277011, 0.63-10 mg/kg) or D4 (L-745,870 and RBI-257, 0.63-2.5 mg/kg) antagonists, but were prevented by the preferential D2 blocker L-741,626 (near-full antagonism at 2.5 mg/kg). The present data do not support a major implication of either DA D3 or D4 receptors in the control of PE and YA in rats, but indicate a preponderant role of DA D2 receptors.

Reply to Harpaz and Yawn

Reply to Harpaz and Yawn

Yawn

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You may want to yawn before reading this

You may want to yawn before reading this

Duloxetine-Induced Excessive Disturbing and Disabling Yawning

Duloxetine-Induced Excessive Disturbing and Disabling Yawning

BIG MOLECULES IN SPACE

SPACE IS FILLED WITH MOLECULES, even in the yawning gaps between stars. The simple ones are generally pretty easy to spot: CO, for example, or H 2 O or HCN. Their spectra, whether from molecular em...