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Background: School-going children constitute one-fifth of the total population. They are the future of the nation's successor generation; therefore, high-performing students are important investments in building the nation's future. This study aimed to identify the health problems among school-going children. Methods: The current research was a cross-sectional study conducted in the Akhorigola block of Rohtas, targeting school-going children. A total of 650 participants were selected through a purposive sampling technique and assessed using a pre-structured format. The acquired data was analyzed using the statistical package for the social sciences (SPSS) to calculate the results based on objectives and hypotheses. Results: The outcomes of the study showed that among the 360 school-age boy participants, 210 (58.33%) had a normal weight, 100 (27.79%) were underweight, and 50 (13.88%) were overweight. Among the 290 girl participants, 150 (51.82%) had a normal weight, 110 (37.84%) were underweight, and 30 (10.34%) were overweight. The study also revealed that the majority of the 650 participants, 149 (22.92%), had inadequate personal hygiene, 109 (16.76%) had dental caries, 78 (12%) were affected by worm infestation, 55 (8.46%) were anemic, 47 (7.23%) had vitamin-A deficiency, 44 (6.76%) had scalp and hair problems, 38 (5.84%) had ear problems, and 30 (4.61%) had impaired visual acuity. Conclusions: Implementing school health programs can pose several challenges, but these can be effectively tackled through the integration of activities between the health and education departments.
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Background: Healthcare is a professional area bound to the ethical foundation of “do no harm.”, But in the current scenario, a rush to promote the curative scenario has led to the total downplay of the preventive aspect of care. The aim of this study was to assess the knowledge regarding nursing care bundle for the prevention of VAP among nursing officers before and after clinical teaching and to evaluate the effectiveness of clinical teaching. Methods: This pretest-post-test study was conducted on nursing officers working in the ICU of the All-India Institute of Medical Sciences, Bhopal, Madhya Pradesh. 100 nursing officers were enrolled in the study via convenience sampling technique. The self-structured tool was validated by 10 experts with a mean CVI value of 0.94. The reliability of the self-structured knowledge questionnaire was determined by the test-retest method and found to be 0.87. The collected data was analysed for frequency, mean, standard deviation, t-test, and association. Results: Findings showed that the mean knowledge score was 18.46±3.543 before intervention. After the intervention of video-assisted clinical teaching, a post-test was conducted, and the mean post-test knowledge scores was 25.07±2.801 at the p value <0.01. Knowledge of subjects about nursing care bundle for prevention of VAP was found to have a significant association with only educational qualification. Conclusions: This study's findings concluded that educational interventions are necessary for the enhancement of knowledge and better compliance of nursing officers with guidelines regarding the bundle of care for the prevention of ventilator-associated pneumonia.
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Background: The aim of this study is to assess the influence of acute fasting on synaptic properties in the ventral tegmental area (VTA) with regards to the sex-dependent differences by use of male and female mice. The study aimed to unravel the intricate interplay between fasting, synaptic plasticity, and behavioural changes to enhance our understanding of the underlying mechanisms. Methods: This study carried out at a tertiary care centre, employed a 16-hour overnight fasting protocol in female rodents and male rodents to examine the effects on physiological parameters, feeding behaviour, and neuronal attributes in the VTA. Various assays, including measurements of blood glucose, ketones, corticosterone (CORT) levels, locomotor activity, and electrophysiological recordings of synaptic currents, were conducted to assess the physiological and synaptic responses to acute fasting. Results: The study found that acute fasting induced significant metabolic changes, including body mass decrease by about 10%. Altered food-seeking behaviour was evident, with male mice exhibiting a pronounced increase. Moreover, neuronal attributes in the midbrain or VTA showed gender-dependent responses: males displayed substantial 20% increase in the frequency of mEPSC onto the dopaminergic neurons in the midbrain post fasting, while females exhibited a 13% elevation in CORT levels, accompanied by a transient period of depression at stimulatory synapses onto dopaminergic neurons which was mediated by endocannabinoids. Notably, no significant changes were observed at restraining synapses in rodents of both genders. These findings highlight the nuanced influence of short-term fasting/starvation on the VTA's synaptic plasticity, emphasizing sex-specific responses and providing valuable insights into potential mechanisms influencing gender differences in neuropsychiatric conditions. Conclusions: The study reveals that acute fasting induces sex-specific synaptic changes in the VTA, shedding light on the intricate relationship between metabolism, food-seeking behaviour, and neural plasticity. These findings emphasize the importance of considering gender-specific responses in studies exploring the neurobiological effects of fasting and their relevance to mental health.
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Background: In accordance with section 3(1) of the 1875 Indian majority act, any individual residing in India must reach the majority age when they reach the age of 18 and not before. Third molar formation begins approximately the age of 18. This study aims to distinguish the third molar Demirjian stage(s) indicate that the individual is under the age of 18, and which do not, we will be able to determine the person's age. Methods: In this research, 202 patients' OPG radiographs aged 14-25 years were obtained. Their radiographs revealed 742 third molars in total. Third molar development was examined using Demirjian's eight-stage method, and average age was then calculated for each step of third molar growth. Stages under the age of eighteen and stages over the age of eighteen were analyzed. Results: Data revealed that a person was in stage C most likely under the age of 18 (minor) and at stage H, a person was most likely over the age of 18 (major). Stages A and B were not evident in the age range studied. The age associated with stage C was less than 18 years, while the age associated with stage H was greater than 18 years. Conclusions: Assessing third molar growth stages is a reliable non-invasive method for estimating an individual's age. Stage H indicates a likely age over 18 with completed root development, while stage C suggests an age under 18 with ongoing root development, making it a quick and useful approach.
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While cervical swellings usually are located in anterior midline like thyroglossal cyst, thyroid swellings, or in antero-lateral aspect of neck like cold abscess, branchial cyst, lymphangioma, cervical lymphadenopathy etc. Nape of the neck swelling is even less common with differentials including lipoma, sebaceous cyst, lymphangioma, etc. Hydatid cyst (HC) is often missed as a differential resulting in intraoperative surprises. This case report might change the mind of the readers to keep HC in back of their minds while approaching a case of swelling of the neck. Here we report a case of 15 years’ female who presented with swelling of nape of neck which on evaluation was inclining towards lipoma/epidermal cyst. With an intention for surgical exploration and excision, the patient was taken for operation, where we discovered it to be HC and the same was later confirmed by histopathology as well. Because of its rare presentation the primary diagnosis of HC is often missed out in spite of having sensitive cytology and imaging modalities. Hence, by reporting this case we intend to emphasize six facts a clinician, a radiologist and also a pathologist must consider while keeping primary HC at an unusual site as a differential diagnosis.
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Background: This cone beam computed tomography (CBCT) examination aimed to determine the inter-radicular bone dimensions inside exceptional increase patterns and decide a safe region for the placement of miniscrew implants. Methods: The inter-radicular bone dimensions have been measured at particular websites within the maxillary and mandibular arches. The measurements were taken on the coastal stage, middle of the root, and apical stage of the selected teeth. Statistical evaluation was completed to compare the bone dimensions among distinctive boom styles. Results: The effects discovered giant variations in inter-radicular bone dimensions and the various increase styles. Class II and class III disorder exhibited narrower inter-radicular spaces as compared to class I disorder, especially in the maxillary arch. The crystal degree and middle of the root confirmed narrower dimensions than the apical level in all increase patterns. These findings provide valuable insights into the ability to secure zones for miniscrew implant placement primarily based on the patient's increased sample. Conclusions: This study highlights the importance of considering growth styles whilst planning miniscrew implant placement. Clinicians have to be cautious and select suitable websites for miniscrew insertion, particularly in sufferers with class II or class III disorder, to ensure the most excellent balance and avoid headaches related to inter-radicular bone dimensions. Tailoring implant placement to individual boom patterns can enhance the fulfilment and protection of orthodontic treatments utilizing miniscrew implants.
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Background: Identification of plasma cells into abnormal (APC) and normal (NPC) compartments is of utmost importance in flow cytometric (FC) analysis of multiple myeloma (MM) and related plasma cell dyscrasias for diagnosis, prognosis, and follow-up. No single phenotypic marker is sufficient to distinguish NPC from APC. Materials and Methods: 43 newly diagnosed cases of MM and 13 controls were included in the study. Bone marrow (BM) samples from the 2nd pass were processed on the same day with antibodies against CD38, CD138, CD19, CD81, CD45, CD117, CD200, CD56, cytoKappa, and cytoLambda in a 4-color experiment with CD38 and CD138 as gating antibodies. Results: Mean APC% in cases was 96.5%. The expected Immunophenotype (IP) of APC which is CD19-/56+/45-/81-/117+/200+ was found in only 13/43 MM cases. In 30/43 cases, APC revealed deviation from expected IP either for single or a combination of markers. Sensitivity for APC detection was highest for CD19 (95.2%) followed by CD56 (90.4%) and CD81 (83.7%). Specificity was highest for CD19 (100%), CD56 (100%), and CD81 (100%) followed by CD117 (92.3%). Combination of markers with maximum sensitivity to detect APC (97.6%) was CD81- or CD19- and CD200+ or CD56+ (two markers); and for NPC (92.3%) was CD81+ and CD19+ and CD56- (three markers). Conclusion: Plasma cell IP can be highly variable with multiple minor subpopulations in both cases and normal controls. CD 19 and CD56 are highly informative markers for a 4-color experiment. Assessment of multiple markers in an 8–10 color experiment is more informative but the lack of advanced flow cytometers should not limit the use of FC in a 4-color approach. Our results emphasize that even basic equipment with limited fluorochrome can provide meaningful information if used appropriately.
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Background: Cholecystitis is a generally widespread problem in adult population. Multiple finding has been found in gross and microscopic examination of gallbladder. Existence of stones is one of the known causative factors that lead to histopathological changes in gallbladder. It is also responsible for the development of gallbladder carcinoma. The purpose of this study was to find out the histopathology of gall bladder specimens following surgical intervention. Methods: This observational study included 116 patients admitted in the department of general surgery, PMCH, Patna with acute or chronic cholecystitis from August 2018 to July 2019. Written and informed consent was taken from all the participants. Data was analyzed using SPSS version 20. Results: A total of 116 gallbladder specimens that presented for histopathological examination during the study period were included into the study, with male to female ratio of 1:3. The highest prevalence was found in the age group of 31-50 years. The results of histopathological examination of these gallbladder specimens showed that chronic cholecystitis was found in 93 (80.1%), acute cholecystitis in 17 (14.6%), and dysplasia was found in 5 (4.3%) patients, and gall bladder carcinoma was detected in 1 (0.8%) patients. On morphological analysis, the commonest gall stones were made up of cholesterol and the most common lesion was chronic cholecystitis by histopathology. Conclusions: This study concludes that the chronic calculus cholecystitis was dominant in our population. It is assumed that routine histopathological examination following cholecystectomies essential for all gallbladder specimens even in the non-existence of macroscopic signs of carcinoma, which was the case in our patients.
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Background: The most common surgical emergency in general surgery is perforation peritonitis. It is a serious condition with a mortality rate of up to 20%, and it is the third most common cause of surgical abdomen after appendicitis and intestinal obstruction. The aim of this study to discuss presentation, etiology, management and outcome of perforation peritonitis in our hospital. Methods: The 60 patients with features of perforation peritonitis admitted from September 2021 to August 2022 in the department of general surgery, PMCH, Patna were chosen. Descriptive statistics was used for analysis. Detailed history was taken, physical examination and X-ray was done. Signs and symptoms, duration of illness, age of presentation, intra-op findings regarding size and location, its management, post-op complications were documented. Results: Total 60 cases of perforation peritonitis were included in this study, among that 80% (48) were males and 20% (12) were females, with male to female ratio of 4:1. Pain abdomen was a universal symptom. Generalized pain abdomen was seen in 54 (90%) cases, followed by lower quadrant in 3 cases (5%) and epigastrium pain seen in 3 cases (5%). Radiation of pain to right iliac fossa was seen in 6 cases (10%). Blunt injury was seen in 9 (15%) case. 14 patients were treated with anti-ulcer medications. Three patients with duodenal ulcer perforation were treated with nonsteroidal anti-inflammatory drugs. Liver dullness was obliterated in 28 patients (47%). Bowel sounds were either sluggish or absent in most cases. Conclusions: Perforation peritonitis is a frequently encountered surgical emergency. Various factors like age, sex, duration, site of perforation, extent of peritonitis and delay in surgical intervention are associated with morbidity and mortality. A successful management depends upon early surgical intervention, source control and exclusive intraoperative peritoneal lavage.
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Background: Cholecystitis is a generally widespread problem in adult population. Multiple finding has been found in gross and microscopic examination of gallbladder. Existence of stones is one of the known causative factors that lead to histopathological changes in gallbladder. It is also responsible for the development of gallbladder carcinoma. The purpose of this study was to find out the histopathology of gall bladder specimens following surgical intervention. Methods: This observational study included 116 patients admitted in the department of general surgery, PMCH, Patna with acute or chronic cholecystitis from August 2018 to July 2019. Written and informed consent was taken from all the participants. Data was analyzed using SPSS version 20. Results: A total of 116 gallbladder specimens that presented for histopathological examination during the study period were included into the study, with male to female ratio of 1:3. The highest prevalence was found in the age group of 31-50 years. The results of histopathological examination of these gallbladder specimens showed that chronic cholecystitis was found in 93 (80.1%), acute cholecystitis in 17 (14.6%), and dysplasia was found in 5 (4.3%) patients, and gall bladder carcinoma was detected in 1 (0.8%) patients. On morphological analysis, the commonest gall stones were made up of cholesterol and the most common lesion was chronic cholecystitis by histopathology. Conclusions: This study concludes that the chronic calculus cholecystitis was dominant in our population. It is assumed that routine histopathological examination following cholecystectomies essential for all gallbladder specimens even in the non-existence of macroscopic signs of carcinoma, which was the case in our patients.
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Background: The most common surgical emergency in general surgery is perforation peritonitis. It is a serious condition with a mortality rate of up to 20%, and it is the third most common cause of surgical abdomen after appendicitis and intestinal obstruction. The aim of this study to discuss presentation, etiology, management and outcome of perforation peritonitis in our hospital. Methods: The 60 patients with features of perforation peritonitis admitted from September 2021 to August 2022 in the department of general surgery, PMCH, Patna were chosen. Descriptive statistics was used for analysis. Detailed history was taken, physical examination and X-ray was done. Signs and symptoms, duration of illness, age of presentation, intra-op findings regarding size and location, its management, post-op complications were documented. Results: Total 60 cases of perforation peritonitis were included in this study, among that 80% (48) were males and 20% (12) were females, with male to female ratio of 4:1. Pain abdomen was a universal symptom. Generalized pain abdomen was seen in 54 (90%) cases, followed by lower quadrant in 3 cases (5%) and epigastrium pain seen in 3 cases (5%). Radiation of pain to right iliac fossa was seen in 6 cases (10%). Blunt injury was seen in 9 (15%) case. 14 patients were treated with anti-ulcer medications. Three patients with duodenal ulcer perforation were treated with nonsteroidal anti-inflammatory drugs. Liver dullness was obliterated in 28 patients (47%). Bowel sounds were either sluggish or absent in most cases. Conclusions: Perforation peritonitis is a frequently encountered surgical emergency. Various factors like age, sex, duration, site of perforation, extent of peritonitis and delay in surgical intervention are associated with morbidity and mortality. A successful management depends upon early surgical intervention, source control and exclusive intraoperative peritoneal lavage.
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Leprosy is the oldest disease affecting humankind since ancient times. Despite MDT’s availability for disease curability, vast pockets of multi-bacillary (MB) cases persist in the community. We conducted this study to know the clinico-epidemiological trends of leprosy over four years and five months in this era of the COVID-19 pandemic (C19P). A total of 90 cases were registered; 59 (65.5%) were males, and 31 (34.5%) were females. The majority (69%) of cases were in the 15-45 age groups. Childhood leprosy was detected in 3(3.3%) cases. A history of contact with leprosy patients could be established in 16 (17.8%) cases. The cases comprised 54.5% local inhabitants and 45.5% were migrants. The MB cases 77 out of 90 (85.6%) were in higher proportion than pauci-bacillary (PB) cases. In the clinical spectrum, BL leprosy was most common in 39% of cases, followed by LL and BT leprosy. Thirty-seven (41%) patients were suffering from lepra reactions (LR), and out of them, 59.4% had type 2 reactions (T2R), and the rest had type 1 reactions (T1R). Disabilities were found in a total of 56 (62.2%) cases, and grade 2 disabilities (G2D) were recorded in 25 (44.6%) patients. Ulnar nerve (UN) was most commonly affected nerve in 64.4% of cases, followed by lateral peroneal (LPN) and posterior tibial nerve (PTN). We observed the impact of Covid 19 infection peak C19P in two ways; firstly, during the C19P peak in 2020, there was a drastic fall in total registered cases (TRC) to 4/year against 22/year in pre-C19P with a relative increase in LRs and disabilities. In post-C19P peak periods, not only was there a marked rise in TRC (20/5 months), but LR (50%) and disabilities (75%) also showed a significant rise. A high proportion of MB cases, LRs and disability rates indicate the need for population-based studies and subsequent public health measures for early diagnosis and treatment. Further large sample-sized, in-depth studies can tell the exact impact of C19P on leprosy.
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Abstract: Viral hepatitis (Hepatitis B Virus (HBV) & Hepatitis C Virus (HCV)) related liver disease is a leading cause of morbidity and mortality especially in the patients with advanced renal failure who are treated with dialysis, and this is due to high number of blood transfusion sessions and/or cross contamination from the dialysis circuits. Aims & Objectives: This study aimed to determine the prevalence of HBV and HCV infections in patients with advanced renal failure (ARF). Materials & Methods: A cross-sectional study was done in joint collaboration of Department of Nephrology and Department of Gastroenterology, KGMU, Lucknow, from June 2018 to June 2020 among, CRF patients. Clinical data such as age, gender, duration of dialysis; number of transfusions, Serum sample was collected from each patient. Serological markers for HBV and HCV were determined with ELISA by using commercial diagnostic kits. HCV-RNA and HBV-DNA were determined quantitatively by polymerase chain reaction (PCR) assay. Results: A total 934 patients with advanced renal failure attended the nephrology OPD. Out of 934 patients, 65 (6.96%) patients screened positive for HBV/HCV infection. The results of this study also showed that the prevalence of viral hepatitis infection in the haemodialysis (HD) and without HD patients is 8.25% and 6.3% respectively. Conclusion: It has been found that viral infections, particularly HBV and HCV infections are common in advanced renal failure patients who are on HD.
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The anterior mediastinal cysts and masses (AMCM) can be of varied origin and presentation. Although the space in the mediastinum is limited the cysts and masses can grow to a large size before the presentation. They displace the adjacent structures and then can grow into the pleural cavities thereby acquiring a large size. We share our experience of a case of a huge anterior mediastinal cystic mass in a young female who had a characteristic presentation of sudden onset breathlessness in the supine position and immediate relief in the sitting position. The patient recovered well after surgical treatment.
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Background: Bacille calmette–guerin (BCG) vaccine containing live-attenuated Mycobacterium bovis was first used in humans to prevent tuberculosis in 1921. It is a safe vaccine. However, there can be minor adverse reactions such as pain, swelling, and redness at local injection site. The lesser known severe adverse reactions such as lymphadenitis, BCG osteitis, and disseminated BCG infection can be present after BCG vaccination. Aims and Objectives: The aim of the study was to report the cases of BCG lymphadenitis diagnosed by fine needle aspiration cytology (FNAC) after BCG vaccination in infants and children. Materials and Methods: All the infants and children (1 month–2 years) who presented with regional lymphadenopathy for FNAC after BCG vaccination were included in the study. Results: Total 21 patients with BCG lymphadenitis were recruited. In all the cases, the lymphadenitis involved ipsilateral left axillary lymph nodes. In three patient sites of involvement included the left supraclavicular lymph nodes and in other three patients left cervical lymph nodes along with left axillary lymph node. Sixteen patients had suppurative granulomatous lymphadenitis (SGLA) on FNAC and positive for Ziehl–Neelsen (ZN) staining for acid fast bacilli (AFB), while rest nine had non-suppurative granulomatous lymphadenitis (NSGLA) with negative for ZN staining for AFB. Conclusion: Early diagnosis of BCG lymphadenitis can help in proper management. Furthermore, it can prevent unnecessary anti tubercular treatment in children.
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Background: Reproductive Tract Infections (RTI) have a direct impact on reproductive and child health through infertility, cancers, and pregnancy complications, and they have an indirect impact through their role in facilitating the sexual transmission of the human immunodeficiency virus. Objectives: To find the prevalence and determinants of RTI/STI among married women of reproductive age group in rural and peri-urban areas of Aligarh. Methods: The data were collected by using a pretested, semi-structured with both open and closed-ended questionnaire from 500 married women of reproductive age group. The collected data were analyzed using IBM SPSS 20.0 Proportion, frequencies, ?2, and logistic regression were used to interpret the data. Results: Prevalence of RTI/STI symptoms was found to (42.8%) in rural areas and 37.6 % in periurban areas. Strong association was found in study subjects having lower educational status, who were not using any contraceptive method, not following good menstrual hygiene, early marriage age had husband history of RTI/STI, had a history of abortion, had a history of violence, and increased parity. Conclusions: Prevalence of symptoms found to be associated with these females having low educational status, early age of marriage, high parity, partner history of reproductive Tract Infections, history of violence etc. So, there should be more focus on improvement in these factors to reduce the prevalence.
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Background: COVID 19 pandemic created immense mental & physical agony among human beings worldwide. The present study was conducted to assess the physical, mental, social and spiritual wellbeing of young adults and the elderly, during the lock-down phase of COVID-19. Methods: The cross-sectional study was conducted among 227 healthy adults in Bhubaneswar, capital of Odisha. Data was collected using a self-administered questionnaire pertaining to the physical, mental, social and spiritual health of participants. Results: During the lockdown, around two-thirds (65.4%) of the participants reported feeling helpless. The elderly felt more helpless than the young adults. One-third (73, 32.6%) of the participants experienced health issues during the lockdown period. The majority of the study participants (83.8%) mentioned that their family members shared tasks during lockdown which was a very positive sign observed in this study. Faith in God for the elderly and family support for the young adults made them mentally stronger. Conclusion: Managing pandemic needs a multipronged approach. But focusing on psychosocial health will prevent future unseen mental health pandemics and improve the resilience of mankind.
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A 24 year old female P1L1 presented to our hospital on first post operative day of emergency caesarean delivery with complaint of fever with chills and rigors. The per-operative notes showed the presence of thick pinkish maternal blood when compared to cord blood, which turned opaque white while sampling. On examination she had pallor and raised blood pressure. Her lipid levels were very high and ultrasound showed bilateral mild pleural effusion with minimal ascites with increase echogenicity of peripancreatic fat. She was started on injectable antibiotics following which she improved in symptoms. She was also started on fenofibrate and orlistat following which her lipid profile improved and the blood stopped turning opaque white and she was then discharged against medical advice due to financial constraints
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Background: Blind people are underprivileged from visual experience and visual imaginary that result them to become more dependent on haptic system for the job of tactile perception. Thus, the self-guided tactile investigation in blind individuals enables them to recognize the shapes more rapidly than the sighted counterparts. Aim and Objectives: The aim of the study was to see the increased tactile perception among the blind than the blind folded sighted subjects. Materials and Methods: The study was carried out on 150 blind and 181 blindfolded sighted subjects. In this, each subject was instructed to arrange the aluminum oxide abrasive sand papers of different grit size having grade 60, 80, 100, 120, 140, 200, 240, 360, 400, and 600 from rough to smooth as fast and accurate as possible in seconds to express the functions of haptic sense. Results: The present study showed that the blind subjects had outperformed in terms of speed and accuracy of tactile perception. Conclusions: Lack of vision among blind individuals enables their brain to enhance the sense of vision and the previous tactile exposure and memories along with their regular practice enhance the touch perception in terms of speed and accuracy.
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Background: Reaction time refers to elapsed time between a given stimulus to an individual and its subsequent rapid voluntary response by the same individual. Mostly, it depends on processing of the stimulus, decision-making, and response programming. Aim and Objective: This study aims to see the effect of vision on auditory reaction time. Materials and Methods: For this study, two groups of subjects were taken. The first group contained 150 blind subjects and the second group contained 181 normal sighted subjects. Estimation of simple and choice auditory reaction time was done with the help of multiple-choice reaction time apparatus received from Inco Ambala Ltd. in sitting position. It has an accuracy of ±0.001 s. Three times auditory stimulus was given to each subject to record the reaction time. The minimum recorded time interval to the voluntary response was taken as final reading in each subject. Results: In this study, the blind subjects showed a mean simple and choice reaction time of 148.84 ± 14.43 and 304 ± 29.54, respectively, while the blindfolded normal subjects showed a mean simple and choice reaction time of 153.80 ± 15.84 and 314.19 ± 31.81, respectively. These were found to be statistically significant. Conclusions: Blind individuals commonly utilize tactual and auditory cues for information and orientation and they reliance on touch and audition, together with more practice in using these modalities to guide behavior, are often reflected in better performance of blind relative to sighted participants in tactile or auditory discrimination tasks.